A Utilitarian FAQ
Last Updated July 1, 2000
Version 1.0
Copyright 2000 by Ian Montgomerie (ian@ianmontgomerie.com)
This document may be freely distributed for non-commercial purposes if
it is reproduced in its textual entirety, with this notice intact.
TABLE OF CONTENTS
●
RECENT CHANGES
●
INTRODUCTION
●
PURPOSE OF THE FAQ
●
ABOUT THE FAQ
●
WHAT IS UTILITARIANISM?
●
THE HISTORY OF UTILITARIANISM
●
MAJOR VERSIONS OF UTILITARIANISM
●
UTILITARIANS AS EMPIRICISTS
●
NORMATIVE, DESCRIPTIVE, AND PRESCRIPTIVE IDEAS
●
COMMON QUESTIONS ABOUT UTILITARIANISM
(一)
Why should I accept Utilitarianism?
(二)
Can Utilitarianism be logically proven?
(三)
Why the name "Utilitarianism"?
(四)
What is the relationship between Utilitarianism, Egoism, and Altruism?
(五)
Is Utilitarianism a form of Moral Relativism?
(六)
What political positions do Utilitarians favor?
(七)
Is Utilitarianism Atheistic?
(八)
Does Utilitarianism favor redistribution of wealth?
●
COMMON CRITICISMS OF UTILITARIANISM
(一)
Utilitarianism is contrary to our moral intuitions, so there must be something wrong with it.
(二)
Utilitarianism doesn't properly account for our commitment to rights.
(三)
Utilitarians will promote inequality as long as it maximizes utility, and that is unfair.
(四)
Utilitarianism ignores justice in favor of whatever is expedient.
(五)
Utilitarianism fails to recognize that we should punish people because they deserve it for what they have
done, not purely because we want to increase present and future utility.
(六)
Utilitarians ignore our special responsibilities, obligations, and promises to people such as family.
(七)
Utilitarianism is cold and unemotional, it's calculations failing to account for the human element.
(八)
Utilitarians focus totally on the consequences of actions, missing the importance of the motive behind them.
(九)
Utilitarians treat utility as if it were something valuable in itself, and people only vessels of utility.
(十)
Utilitarianism doesn't have a proper regard for people, because it only cares about their utility, a number.
(11)
Utilitarianism is infeasible because people can't constantly calculate the utility of their actions.
(12)
Utilitarianism is unacceptable because it requires people to be saints, always ready to do whatever will
maximize utility.
(13)
Utilitarianism devalues our deepest commitments, by saying that we should value everyone else's commitments
as much as we value our own.
(14)
We will get the best outcome if everyone just follows egoism and acts in their own best interests.
(15)
The Utilitarian argument for why we should treat pleasure as utility contradicts itself.
(16)
Having a preference doesn't make something valuable, its value is a reason to prefer it.
(17)
Utilitarianism fails to distinguish between good preferences, and bad preferences (such as sadism).
(18)
Utilitarianism would sanction any horrible act if a sufficiently large number of people preferred that it
happen. (AKA "Utilitarians would support the fatal games in the Roman Coliseum")
(19)
Utilitarians would sanction things like sacrificing a healthy man to use his organs to save five sick men.
(20)
Utilitarianism cannot account for why it would be bad to be stuck in a Matrix-like "Reality Machine".
(21)
We can't measure arbitrary preferences, so Preference Utilitarianism is useless.
(22)
There is no effective way to compare utility between people, so Utilitarians in practice cannot
effectively redistribute assets.
(23)
Utilitarianism is inherently conservative. It says our current preferences are good in themselves, so there
is no room for social reform aimed at encouraging people to have better preferences.
(24)
Game theory proves that Rule Utilitarianism is superior to Act Utilitarianism.
(25)
Utilitarians in the real world would simply be exploited by the less altruistic, and lose power and
influence.
(26)
Utilitarians are opposed to democracy because a popular vote is unlikely to maximize utility.
(27)
Utilitarians just keep adding patches to their theories to rectify specific criticisms, but the very fact
that this is necessary demonstrates the bankruptcy of the Utilitarian approach.
●
USEFUL REFERENCES
●
BIBLIOGRAPHY
●
CREDITS
RECENT CHANGES (top)
None (this is the first version of the FAQ).
INTRODUCTION (top)
Utilitarianism is a philosophy which has been around for
centuries, and is still active and popular in the modern world. It is
important not only in philosophy itself, but in disciplines such as
economics, political science, and decision theory. To some people,
Utilitarianism seems to be the only ethical philosophy which is
obviously correct. To others, it seems to be quite misconceived, even
reprehensible. Unfortunately, it is very difficult to get information
on Utilitarianism, especially on the Internet. Although many good books
on Utilitarianism have been published recently, the picture most people
have of Utilitarianism is of the ideas of Jeremy Bentham and John
Stuart Mill two centuries ago. People who read more recent works of
philosophy are likely to read about Utilitarianism only in the words of
its critics. This FAQ provides a summary of Utilitarianism and answers
to common questions about it and criticisms of it. It emphasizes modern
Utilitarian ideas because they are the most refined, and the least well
known. The main sections of the FAQ contain the
necessary background, while explanations of the common questions and
common criticisms do not rely on each other.
PURPOSE OF THE FAQ (top)
The purpose of this FAQ is to explain modern
Utilitarianism, both by describing what it advocates and answering
criticisms of it. Utilitarianism is actually a philosophy with quite a
few different variants, and it is beyond the scope of any FAQ of
reasonable length to do justice to them all. Additionally, many of the
variants of Utilitarianism can be regarded as obsolete (which is why
there are newer variants in the first place). The Utilitarianism of
Jeremy Bentham and John Stuart Mill, for example, is still the best
known form but has relatively few adherents today. These older versions
have been subjected to many criticisms, some of which were telling, and
subjected to many revisions as human knowledge advanced. Modern
Utilitarian writings have brought forth the best arguments for certain
ideas which are only a small part of all of the ideas that have at one
point or another been called "Utilitarian". Because of this, there are
two main approaches that a Utilitarian FAQ could take. One approach
would be to try and cover the full history of Utilitarianism and all of
the variants of it, thus describing a large group of philosophical
positions spanning centuries. The other approach would be to pick the
most modern, relevant, and correct Utilitarian positions and provide a
consistent and comprehensive explanation of them. This FAQ follows the
second approach, aiming to present a strong philosophical position,
rather than a neutral historical overview. The main Utilitarian
perspective presented here is a modern perspective on an act-based,
preference-based, indirect Utilitarianism (these terms will be
explained). This appears to be the perspective which has the most and
the best support in modern writings, and the strongest arguments in
favor of it.
This FAQ is designed not just to explain modern
Utilitarianism, but to do so in a straightforward and accessible way.
The FAQ is intended as a resource for anyone on the Internet that is
interested in a thorough overview of Utilitarianism, regardless of
whether or not they support it themselves. It avoids technical terms
and philosophical jargon, and when that is not possible, definitions
are provided. This FAQ is intended to provide a concise and readable
overview of Utilitarianism, not the most powerful or rigorous possible
arguments. The intention is that people will actually be able to read
the whole FAQ, or the sections that interest them most, without undue
effort. All too often, justice cannot really be done to an argument in
the limited space available. Suggestions on how to make the FAQ more
understandable and more useful are always welcome.
ABOUT THE FAQ (top)
The maintainer and author of this FAQ, Ian Montgomerie,
has entirely too much experience in online philosophical debates. He is
neither a professional philosopher nor an official student of
philosophy, although he is widely read on topics related to
Utilitarianism. Although he has been a Utilitarian since he learned
what the word meant in his late teens, and reinvented several
Utilitarian wheels, he has no particular claim to authority other than
whatever merit his arguments have in their own right. The first version
of this FAQ was written in June 2000, mainly because of a near-total
absence of information related to Utilitarianism on the Internet. It is
intended to be a first step in rectifying that.
This FAQ will be continually, although irregularly,
revised and made available on various newsgroups as well as the World
Wide Web. This FAQ may be freely distributed for non-commercial
purposes (in other words you can't use it to make money), so long as
all of the text is kept intact, including disclaimers, copyright, and
credits. Distribution of the FAQ is actively encouraged, and the
maintainer will be happy to send updated versions to anyone who wishes,
and will distribute it in some useful manner. HTML and non-HTML
versions are available. Please email the maintainer, or check his web
site, for the latest version of the FAQ in both formats. Please direct
questions and suggestions to the maintainer, who is always eager to
hear them. Pointers to online and print resources relevant to
Utilitarianism are also greatly appreciated.
WHAT IS UTILITARIANISM? (top)
Utilitarianism, properly speaking, is a collection of
philosophical positions which have five major characteristics in
common. Anything with these five characteristics is some type of
Utilitarianism. Utilitarianism has been called the doctrine that the
morally right thing to do is whatever produces the greatest good for
the greatest number, but that old maxim is not really a useful
description. Utilitarianism is the doctrine that the morally right
thing to do consists, entirely, of doing whatever will maximize
utility. Utility itself is not a simple concept, although its intent is
to represent circumstances that are good for individuals. The five main
characteristics of Utilitarianism are as follows:
Universalism: Utilitarianism holds that morality is universal, that the same moral standards apply to all
people and all situations. The standards that define what is right are the same for me and you, regardless of who
we are. This isn't particularly controversial, because most ethical philosophies since the Enlightenment have been
universalist. An important consequence of this view is that the utility of all people is important, and is in fact
assumed to be equally important. This means that Utilitarianism is an egalitarian philosophy, holding that all
people should count equally. It should be noted, however, that many people believe that if someone is friend or
family, you should regard their welfare as morally more important than that of others.
Consequentialism: Utilitarianism holds that what matters, morally speaking, are the consequences of actions.
A technical word for this is "Teleological". What this means is that, to Utilitarians, it is the real world results
of something that are good or bad, not something intrinsic to the action itself. For example, telling a lie would
be bad if it produced bad consequences (which lies usually do). It would not be wrong just because it is a lie.
This view is quite controversial, and the main opponents of Consequentialists are the people who support rights
theories. The technical word for the positions opposed to consequentialism is "Deontological". These view may
hold that, for example, telling a lie is always wrong because all lies are wrong, regardless of what their effects
are. Rights theorists support the idea of "natural rights", which are rights that it is inherently wrong to violate
regardless of the consequences.
Welfarism: Utilitarianism's definition of what is good is a welfarist definition. Good consequences are those
which increase the well-being of specific people. This well-being is subjective. The exact conception of welfare
varies, but it is always something like happiness, satisfaction of preferences, attainment of goals, or something
else like that. What is good is the welfare of people, and the welfare of people depends on whether each person as
an individual is living a good life from their perspective. A belief opposed to welfarism would be the idea that
something is a good consequence regardless of whether or not people desire it. For example, one such belief would
be that fairness is inherently good even in situations where nobody involved cares about it or benefits by it in
any way.
Aggregation: Utilitarianism is an aggregative philosophy, meaning that its conception of individual goods
allows them to be summed up into a single measure of overall good. Utilitarianism holds that the welfare (utility)
of different people can be compared, and thus summed up into a total which describes the overall welfare of all
people. Aggregation is controversial, because many people believe that the welfare of different people cannot even
in principle be compared.
Maximization: Utilitarianism is the most famous maximizing philosophy. A maximizing philosophy is one which
says that, whatever is good, it is best to have as much of that good as possible. In the case of Utilitarianism,
the best course of action is the one which brings about the highest level of welfare. Not all philosophies are
maximizing. Some non-consequentialist philosophers (Kant is probably the most famous) held that it is wrong to
do something bad even if that will reduce the total amount of bad things in the world. Some consequentialist,
welfarist philosophers believe that welfare should be equalized between people, rather than being maximized.
Given these characteristics, Utilitarianism is best
described as the ethical philosophy that says the morality of actions
is proportional solely to how effectively their consequences maximize
utility. Utility is the welfare of individual people, from the
perspective of those people, and one person's utility is as important
as another's. The major opponents of Utilitarianism are philosophies
which believe that actions can be inherently right or wrong regardless
of their consequences, or that some consequences are good even if they
do not increase the welfare of any individual, or that we should
promote welfare in some way other than by maximizing it.
THE HISTORY OF UTILITARIANISM (top)
Utilitarianism is a fairly old philosophy, and major
elements of it are even older. The best known, and most prolific,
Utilitarian philosophers were Jeremy Bentham (1748-1832), and John
Stuart Mill (1806-1873). In their time, Utilitarianism was a
significant philosophical movement in Britain, and the Utilitarians
were some of the leading social reformers of the time. Mill,
especially, is quite well known today. Many people seem to think,
unfortunately, that Utilitarianism began with Bentham and ended with
Mill. This is quite wrong in two ways. First, Bentham was not the first
Utilitarian, although he did coin the word "Utilitarianism". Various
pre-Benthamite philosophers were advocating Utilitarian positions
several decades before Bentham was born. Also, Utilitarianism has a lot
in common with ancient non-Utilitarian philosophers, such as Mo Tzu and
Jesus. Both of these people advocated a doctrine of universal love.
These doctrines were not precisely stated enough to compare directly
with Utilitarianism, but they were definitely universalist and
egalitarian,
and had strong currents of consequentialism, welfarism, and (at least
in the case of Mo Tzu) maximization. The second problem with the
popular misconception is that there has been a great deal of
development in Utilitarianism since Mill. Some people are aware, for
example, of the later developments of Preference Utilitarianism and
Rule Utilitarianism. Mill is still usually regarded as the main
resource on Utilitarianism, though. Part of the problem is that he
wrote about it comprehensively, and there have been few good
comprehensive books about Utilitarianism since then.
Modern Utilitarianism is in many ways far more
sophisticated than that of Mill. Most importantly, it has become
connected with many developments in areas such as economics, political
science, and decision theory. Utilitarianism has always enjoyed an
essentially unique position as the only philosophy which applied to all
areas of human endeavour in a reasonably straightforward (in theory,
anyway) endeavour, and committed to specific positions on how conflict
between various interests should be resolved. In Mill's time,
Utilitarianism was strongly linked to economics, although the two
disciplines subsequently diverged. Today, Preference Utilitarianism as
a theory underlies many ideas in the sciences, and has been formalized
to a degree that Mill never dreamed of. The idea of utility
maximization even has applications entirely outside of philosophy, such
as its use in artificial intelligence to represent how a computer could
make tradeoffs between different goals. Utilitarianism today exists
both as a powerful kind of formal reasoning, and as the philosophy
which says that such reasoning should define the moral ideal in human
affairs. Utilitarianism can even be formally derived from a set of four
reasonable seeming axioms (an axiom is a simple founding assumption,
most often used in mathematics), something that no other major
philosophy can claim.
The modern state of Utilitarianism in relation to other
philosophies is actually quite unusual. Most philosophies exist in
theoretical isolation, based on ideas which have little in common with
ideas in other disciplines. Other disciplines, in turn, don't have much
formal contact with them. Most major philosophies have a significant
presence in politics and social issues, with people explicitly
referring to issues such as rights and equality when debating how
society should be organized. Utilitarianism, on the other hand, exists
mostly in the background of popular discourse. People who claim to
follow other philosophies often make Utilitarian arguments when it
suits them, and Utilitarian arguments are often used by people who
wouldn't claim to follow any specific philosophy at all. Many
philosophers make sure to explicitly place their ideas in opposition to
Utilitarianism, as if it were always lurking in the background ready to
pounce on the unsuspecting theory. In part, this may be because
Utilitarianism is a sort of philosophical hydra, growing a new position
for each one that is dismissed. While specific Utilitarian ideas are
vulnerable to attack, the underlying sentiments have proven amazingly
resilient and have evolved to remain entirely current. Throughout the
twentieth century, many philosophers confidently predicted that
Utilitarianism had been devastated, and would soon fall out of favor -
only to be disproved when it remained as popular as ever. Utilitarian
perspectives have also been quietly adopted in domains ranging from
economics, political science, and decision theory to cognitive science
and artificial intelligence. This has given modern Utilitarianism a
powerful formulation like no other, and a strong (although largely
invisible to the public) applied tradition. The old questions of how to
measure utility, and how to maximize it most effectively in practice,
have been extensively researched outside of philosophy. The result of
this is that while other philosophies often talk in general terms of
how they should be applied, and have problems in resolving conflicts
between various principles, Utilitarianism is at the cutting edge of
rigorously applicable principles. Which is still, it should be
mentioned, far from perfect. Application of ethical systems to the
complexity of the real world is no easy task, and Utilitarianism is the
worst philosophy around for doing that, except for all the others.
MAJOR VERSIONS OF UTILITARIANISM (top)
Although a great number of different positions have been
called "Utilitarian", there are a few major versions of Utilitarianism
which it is important to be aware of. This is a short overview of some
of the different approaches that have been taken to the five major
elements of Utilitarian philosophy. Various combinations of these
different approaches form the beliefs of individual Utilitarians.
Essentially any combination is valid, although some are less common
than others. Subdivided by characteristic, the versions are as follows.
Universalism: All Utilitarians are universalists.
Consequentialism: There are two major views of how consequences matter, Act Utilitarianism and Rule
Utilitarianism. Act Utilitarianism, the original and most common position, holds that the rightness of any
action depends on the consequences of that specific action. Rule Utilitarianism holds that the rightness of
any action depends on whether or not that action follows a universal rule which would have good consequences if
everyone followed it. Under Act Utilitarianism, the rightness of actions is evaluated on a case by case basis, and
things such as rules and laws are only present if they have practical usefulness. Under Rule Utilitarianism, the
utility of rules rather than actions is evaluated, and all actions should conform to the rules with the highest
utility. A rare third variant, Ideal Utilitarianism, holds that the consequences which matter may include how well
actions conform to abstract principles or ideals. This is not properly Utilitarianism at all, however, because it
violates Welfarism.
Welfarism: One of the larger disagreements in Utilitarianism is exactly what welfare is. The oldest variant
is Hedonistic (or Benthamite) Utilitarianism, which holds that welfare is equivalent to the presence of
pleasure and the absence of pain. Hedonistic Utilitarians define utility solely according to one's state of pleasure
and pain, regardless of the causes of that state. A newer and now more common variant, Preference
Utilitarianism, defines utility as the degree of satisfaction of one's preferences. To a preference Utilitarian,
if someone prefers for something to happen, then that something increases their utility even if it does not produce
pleasure or remove pain. There is disagreement about exactly what preferences are, and opinions on the matter fall
into two main camps. Those who believe in expressed preferences think that you prefer something if and only if you
choose it over the alternatives when the occasion comes. Those who believe in informed preferences believe that
people do not always choose what would be best for them. They hold that preferences are what someone would choose
over the alternatives given hindsight, or given ideal knowledge of all the alternatives, or given ideal powers of
reasoning. A rare third variant, Negative Utilitarianism, holds that utility is defined solely by the absence of bad
things, such as pain (and thus that the presence of good things does not effect it).
Aggregation: There is one difference of opinion between Utilitarians on the question of exactly how
individual utilities should be aggregated into overall utility. Some believe that they should maximize total
utility, so that adding more people to the population, which would also add their utilities to the total, would
in general be a good thing. A consequence of maximizing total utility in this way is that a poorly off, but truly
huge, population would be preferable to a well off but significantly smaller population. Others believe that they
should maximize the average utility of the population. They believe that the point of egalitarianism is to
make tradeoffs between the utility of different people on an equal basis, so that the average utility of the people
concerned should be maximized. According to them, it is missing the point to say that adding more people is an
improvement, even if it decreases the welfare of the current members of the population.
Maximization: There are two different debates among Utilitarians that are related to the issue of
maximization. The first is about whether actions should be chosen according to whether they maximize expected
utility (the amount of utility that is predicted to result, given the unpredictability of the world), or
according to whether they maximize the actual utility that results after the fact. While maximizing the
actual utility is what produces the best results, the fact is that only expected utility can be maximized without the
ability to perfectly predict the future. For this reason, many Utilitarians explicitly say that the best course of
action is to maximize expected utility, because this more realistic definition is easier to work with. The second
debate is over Direct versus Indirect Utilitarianism. Direct Utilitarians believe that in order to maximize
utility, people and organizations should explicitly try to maximize Utility. According to them, Utilitarianism
demands that we consider the various courses of action according to how much utility they will produce, and pick the
one which maximizes it. Indirect Utilitarians believe that calculating utility is not something people are
very good at on a day to day basis. According to them, it may be most effective if people follow laws and rules of
thumb which are effective in practice. This will often maximize utility more effectively than if people always
explicitly tried to calculate utility, because people are not very good at trying to calculate the utility of every
action they take.
UTILITARIANS AS EMPIRICISTS (top)
One of the most important aspects of Utilitarianism as a
philosophy is that it is very Empiricist. Empiricism is, basically, an
approach to knowledge which relies on finding out what things are like
in the real world. There are many approaches to knowledge other than
Empiricism. Rationalism holds that a great deal of knowledge, such as
moral knowledge, can be deduced from abstract principles and is thus
absolutely true regardless of what the real world is like. Intuitionism
holds that people can "just know" what the truth is because they feel
it intuitively. Many religions hold that the truth is whatever the
absolute authority of God says it is, and it must be accepted on faith.
Empiricism is different from these. According to Empiricism, to know
anything of much use about the world, you have to go out and
investigate the world. You have to collect evidence, and use that to
figure out what is true. Reason without evidence allows you to figure
out little more than abstract rules and principles such as mathematics
and logic. Faith and intuition are untrustworthy, only empirical
evidence is trustworthy.
Empiricism is very important to Utilitarianism because
Utilitarianism says that the morally best actions are those
which produce the greatest welfare in practice. Figuring out what will
produce the greatest welfare in the real world is a complex practical
issue. Utilitarianism tells us what goal to work toward, giving us a
standard to measure our actions against. Empiricism is necessary to
tell us how to achieve the goal. A Utilitarian cannot sit down and
figure out what the
utility-maximizing action is by reasoning logically from first
principles, or by consulting intuition. Most obviously, this
is because the consequences of actions in the real world depend on the
details of how the real world works. Those details can only be figured
out by empirical investigation. More importantly, however, is the
nature of welfare itself. Welfare is
different for each person. People prefer different things, have
different desires, and work toward different goals. They take pleasure
in different things, and have different hopes and fears. To maximize
utility, it is necessary to know what is good for different people.
Sometimes this means using an empirical approach to figure out exactly
what specific people want. Other times, this means using an empirical
approach to investigate human nature, and find out what groups of
people are most likely to want. Either way, we have to actually check
real world evidence to learn about the welfare of real people. We
cannot rely on our own particular perspective to figure out what other
people want, and we cannot logically deduce desires.
What this means for Utilitarianism as a practical
philosophy is that Utilitarians favor specific actions or policies
based on evidence. Utilitarianism in itself gives no direction as to
what methods are most likely to achieve the desired end of maximizing
utility. Many philosophies are not at all empirical in their
application. Philosophies based on religion often command their
followers to follow fairly specific rules based on religious dictates.
Philosophies based on natural rights say that certain actions are
absolutely right and others absolutely wrong, regardless of their real
world consequences. If actions are evaluated according to whether or
not they follow strict rules and principles, then real world policy
tends to become a matter of directly applying philosophical
justification. For Utilitarians, on the other hand, philosophy does not
apply directly to any policy. It is always necessary to look to
Empiricism to determine the likely consequences of an action or a
policy. Only then can those consequences be evaluated according to how
effectively they maximize utility.
NORMATIVE, DESCRIPTIVE, AND PRESCRIPTIVE IDEAS (top)
Before going into detail about the Utilitarian
perspective on specific issues, it is important to be familiar with
three kinds of ideas: normative, descriptive, and prescriptive. When
discussing philosophy, especially ethics, it is important to
distinguish between kinds of ideas that are talking about fundamentally
different things. Failure to do so can lead to a great deal of
confusion, and to poor arguments.
Normative: Normative ideas are theoretical ideals. A normative idea sets out a theory of how things would be
if they were perfect. Normative ideas are useful because they set out a standard against which to measure everything
else. Nothing in the real world is perfect, but the ideal functions as a yardstick to tell us just how good it is.
Normative ideas are not supposed to be realistic, or to describe something that we might actually achieve. They
are perfection, and true perfection is beyond our reach.
Descriptive: Descriptive ideas are empirical reality. A descriptive idea attempts to explain or describe
reality as it actually is. Descriptive ideas are useful because they establish our theoretical and practical
understanding of how the world works, what it is like, and why. This allows us to deal with the real world from a
position of knowledge and awareness of it. Descriptive ideas are not supposed to tell us how things should be, or
how we should change them. They are reality with all its warts.
Prescriptive: Prescriptive ideas are suggestions for practical improvements. Such an idea prescribes
actions or policies which are likely to succeed in improving the real world. Prescriptive ideas are useful because
only they tell us how we should act in practice so as to improve things. Descriptive ideas tell us how things are,
but not how they should be. Normative ideas establish ideals to work toward, but they are not in themselves
practically achievable. A prescriptive idea takes into account descriptive reality, and tells us what we can do to
move closer to the normative ideal. Prescriptive ideas are not necessarily similar to normative ideals, because
aiming to bring about an ideal in the most straightforward or direct manner may not be the most effective way to
get nearer to it.
The distinction between these kinds of idea is especially
important to Utilitarianism. It is very common for philosophers to fail
to distinguish between prescriptive and normative ideas. All too often
an ideal is criticized because it seems to hard for humans to achieve
in practice, or a practical suggestion is criticized because it
proposes getting closer to an ideal by indirect means. Utilitarianism
is, fundamentally, a normative idea. Utilitarian philosophy describes
the ultimate, perfect state of affairs - Utility maximization. The
Utilitarian ideal is to achieve the highest possible level of welfare
for everyone. Notice that the Utilitarian credo has the structure of a
normative idea - it sets out the goal of welfare maximization, and it
describes how to compare reality to the goal (use the concept of
utility). It does not, however, necessarily say anything at all about
how that goal should be pursued in practice. Indirect Utilitarianism,
for example, is an explicit recognition that Utilitarianism is a
normative ideal, not a prescriptive idea. According to Indirect
Utilitarians, utility maximization is the ideal but that ideal might be
most effectively achieved by people who are not constantly and
consciously trying to maximize utility. The prescriptive ideas that
work best in bringing utility as close as possible to the maximum may
not be a straightforward or direct application of Utilitarian
maximization.
When specific criticisms of Utilitarianism are addressed
in the following sections, these three types of ideas will be mentioned
fairly often. It is important to separate normative and prescriptive
ideas, because criticisms of Utilitarianism itself must focus on its
nature as a normative idea. Criticisms which focus on prescriptive
ideas can only address the issues of applying Utilitarianism, not the
validity of Utilitarianism as a normative philosophy. Confusion between
these different types of argument is unfortunately quite common,
because philosophers in general do not consistently distinguish between
normative and prescriptive ideas. When they do distinguish them, the
terminology they use to do so varies from philosopher to philosopher,
providing further evidence that they are recognizing the difference on
a case by case basis rather than in general. In fact, many
disagreements within Utilitarianism itself seem to involve a confusion
between normative and prescriptive ideas. For example, a major argument
for Rule Utilitarianism has been that following rules would make
coordination and cooperation easier, and thus maximize utility more
effectively than attempts to evaluate the utility of every single
action. This is simply an argument that following rules is
prescriptively useful, because it is better in practice at increasing
utility. It is not an argument against the normative ideal of Act
Utilitarianism, which is entirely compatible with the idea that
following rules will, in practice, be more effective than trying to
calculate the utility of every action. An all too common philosophical
error is to try and come up with normative ideals that will work as
practical, prescriptive strategies as well. There is no particular
reason to reject an ideal just because it cannot be fully achieved in
practice, and these definitions should help us recognize that.
COMMON QUESTIONS ABOUT UTILITARIANISM (top)
(一)
Why should I accept Utilitarianism? (top)
Numerous arguments have been advanced in favor of Utilitarianism, and it would be impossible to do justice to
them here. Brief overviews of some of the arguments in favor of Utilitarianism will have to suffice. Those who
are more interested should check out the "Useful References" section of this FAQ for further reading.
The most obvious argument for Utilitarianism is that it is like an extension of Egoism (self-interest) to
the group. Different people have different interests. Utilitarianism trades off between the interests of different
people, holding that what is important is their actual interests rather than what someone else thinks they should
be interested in. Utilitarianism takes all of the principles that we tend to believe someone should apply if they
wanted to further their own interests as much as possible, and extends them to the interests of all. Utilitarian
morality says that what is good for people is defined by what they value, not by what someone else values.
Utilitarianism is attractive to those who believe that the well being of people should be determined by the people
themselves, rather than what someone else has decided is good for them. Non-Utilitarian philosophers often
hold that it is intuitively obvious that we should value things other than welfare. Exactly what else they say we
should value, however, tends to vary significantly according to the dictates of culture, religion, and their own
prejudices. Welfare is the one thing that virtually everyone agrees is a good thing, independent of perspective.
A second argument for Utilitarianism is that it is the only rigorous, simple, and powerful system of
morality that emerges solely from relatively basic principles. Many people believe that a system of morality
should reflect our "moral intuitions" about what is right and wrong, but the details of such moral intuitions vary
quite a bit between people. Utilitarianism can be supported by basic and nearly universal intuitions, such as that
welfare is good, that if something is good you should have as much of it as possible, and that people should be
given equal consideration. On top of these, Utilitarianism constructs a powerful and consistent philosophy that
can be applied to any situation. The exact results do not always agree with peoples' specific moral intuitions,
but that is also true for any other philosophy that is not equivalent to "do whatever your intuition happens to
tell you is right". Non-Utilitarian philosophies are also supported by appeals to various moral intuitions, but
not in nearly such a basic or consistent manner. Non-Utilitarian philosophers tend to appeal to a great many
intuitions, some of them very specific. They do so at many stages of their argument, whenever it seems convenient.
It often seems that philosophers use logic and inference from the intuitions they have appealed to already only so
long as that produces the result they want, and when it does not then they appeal to yet another intuition to move
the argument in another direction. Utilitarianism does not have these flaws.
A third reason to support Utilitarianism is because of its strong support. The Utilitarian approach to
morality can actually be derived from a small set of axioms, such as Bayesian reasoning and Pareto Optimality. These
are technical ideas that not everybody accepts, but Utilitarians can point to a small set of reasonable founding
assumptions and say "if you accept these, then our philosophy provably follows from them". Because of the power of
the concepts it is founded on, Utilitarianism provides an ethical theory that applies to every situation in a well
defined manner. Utilitarianism is not easy to apply in practice, but when one gets down to it other philosophies
are not either. In fact, most non-Utilitarian philosophies can't even be consistently applied in theory.
Philosophies based on the idea of natural rights, for example, have never managed to come up with a complete
specification of what to do when different rights conflict with each other. They give some guidance about what to
do in relatively ordinary situations, but not how to resolve every possible conflict. Utilitarian theory can provide
an answer in any situation, so that we only have to worry about the practical problems that come from applying the
ethical theory.
(二)
Can Utilitarianism be logically proven? (top)
There are actually three different ways in which a philosophy could be proven, and in which people try to
prove philosophies. Each of those will be considered in turn.
The first way to prove a philosophy would be to show that it followed inevitably from the basic rules of
mathematics and logic. Such a proof would be very powerful, because you could not deny it without denying the very
foundations of mathematics and reasoning. Such a proof is also impossible. Quite simply, mathematics and logical
reasoning in themselves do not say anything about human morality. In general, such subjects deal with formal
relationships between abstract symbols. They only produce conclusions that are more than interesting symbol games
when we use the symbols to represent relationships in reality. When we do that, we introduce concerns such as the
accuracy of the evidence we are using, and whether the assumptions we are making about how the symbols correspond to
reality are actually true. This means that mathematics and logic require evidence to produce conclusions about
reality, and their conclusions are only as good as that evidence. Anybody who claims to have absolutely proven the
correctness of any moral philosophy using mathematics or logic is wrong. Neither Utilitarianism nor any opposing
philosophy can be proven in such a way.
The second way to prove a philosophy would be to introduce facts about the world, and to show that the
philosophy holds true if those facts hold true. Such a conclusion is only as strong as the facts it is based on
and the reasoning which produces a proof from them. Some facts, however, are certain enough that most people will
reasonably accept them. Unfortunately, it is impossible to prove the correctness of an ethical philosophy based only
on empirical facts. This was recognized over two centuries ago as the "is-ought" problem. The facts describe only
what is. Ethical philosophy attempts to describe what we ought to do. An "ought" and an "is" are two entirely
different kinds of statements, and you cannot produce either one from the other. While this rule (known as Hume's
Law) has not really been formally proven, it has also never been violated in two centuries. Countless philosophers
have attempted to deduce what we ought to do using only knowledge of what is true in the real world, and all of them
have failed. Neither Utilitarianism nor any opposing philosophy can be proven based only on reasoning from empirical
evidence.
The third way to prove a philosophy would be to deduce it from axioms. An axiom is a kind of foundational
assumption used in such things as mathematical and logical proof. An axiom is assumed to be true, rather than being
proven. Axioms are usually chosen because they seem reasonable and because they produce reasoning which is useful.
For example, it is considered a good idea to choose axioms which are consistent with each other, because inconsistent
axioms would allow you to prove anything. This kind of proof is only as good as the assumptions it is based on.
What this means is that a logical argument which brings in assumptions other than the basic assumptions of
mathematics and logic can be used to prove Utilitarianism, or anything else. Such a proof can show that if you
accept certain assumptions as true, you must also accept the conclusions of the proof. Very few philosophers even
attempt to formally prove their conclusions based on axiomatic assumptions, due to the complexity of the task. Most
are content to produce written arguments in favor of their position, with a variety of assumptions mentioned. Most
philosophies actually require a substantial number of assumptions at various points in their argument.
Utilitarianism, on the other hand, requires only a few plausible assumptions to be formally proven.
The axioms sufficient to prove Utilitarianism are described by Harsanyi in "Utilitarianism and Beyond" (see
the Bibliography section of this FAQ). Note that one could prove Utilitarianism using other axioms, perhaps even
more reasonable ones, but these four are among those that will work. First, the preferences of people should
follow Bayesian rationality. Second, moral preferences should follow Bayesian rationality. Third, moral preferences
should follow Pareto Optimality. Fourth, the preferences of different people should be given equal weight.
Unfortunately, these issues are too technical to describe in this FAQ. The axioms will mainly be of interest to
those who know what Bayesian rationality and Pareto Optimality are. Bayesian rationality is the dominant theory of
how to make rational choices under uncertainty. Pareto Optimality is the idea that if there are two outcomes A and
Z, and some people prefer A to Z while nobody prefers Z to A, then A ought to be chosen.
(三)
Why the name "Utilitarianism"? (top)
The name "Utilitarianism" is perhaps unfortunate, because the non-philosophical usage of "utilitarian" has
certain negative connotations attached. Something which is utilitarian is functional, practical, and effective,
just as Utilitarianism is intended to be. The world also, however, carries the connotation that something which is
utilitarian is nothing more. Calling something utilitarian may give the impression that it is functional but
has no other virtues; it is unappealing, ordinary, spare and minimal. This does fit in with some popular
misconceptions of Utilitarianism, but it has little in common with the actual philosophy. If I had a choice I
might call it something like "Welfare Optimization". The name "Utilitarianism", however, became thoroughly stuck
centuries ago and is not going anywhere. It is also, unfortunately, becoming less useful over time because so
many views are becoming identified as "Utilitarian". When advocating a particular sort of Utilitarian view, one
is often tempted to coin a new name for it merely to avoid having it mixed up with whatever the reader's existing
conception of Utilitarianism is.
(四)
What is the relationship between Utilitarianism, Egoism, and Altruism? (top)
Utilitarianism, Egoism, and Altruism are very closely related to each other philosophically, although
they are very different in practice. They are all Consequentialist, Welfarist, Maximizing, Universalist theories.
The difference is that Utilitarianism is Aggregative, and the other two are not. All three ideas accept that what
is morally good is solely defined by the consequences that people prefer. Where they differ is in the weight that
should be given to the preferences of different people.
Ethical Egoism is essentially the ethical philosophy that says there should be no ethical philosophy. It
claims that the only preferences that matter to any person should be their own. Ethical Egoism holds that people
should maximize satisfaction of their self interest, without any consideration for others. Ethical Altruism is the
opposite - it claims that people should entirely ignore their own preferences, and maximize the welfare of others.
Utilitarianism claims that the same weight should be given to the welfare of everyone, regardless of who they are.
Theoretically, one could also claim that people should give varying weights to different people according to some
complicated scheme, but no philosophy has actually done this. In fact, Ethical Egoism and Ethical Altruism are
both rare philosophies. Utilitarianism is the only one of the three with substantial support.
Note that it is also common to label individual behaviors, as well as philosophies, as examples of egoism,
altruism, and utilitarianism. An egoistic behavior is one which shows concern only for self interest, an altruistic
behavior shows concern for others, and a utilitarian behavior shows concern for all equally. There can be some
confusion because in the real world, unlike in ethical philosophy, behaviors can show varying balances between
benefits to the self and to others. Sometimes, calling a behavior "altruistic" is used to mean that the net result
of its effects taken together is to bring about more welfare for others, and less for the self, than a fully
egoistic behavior. In this sense, egoistic behaviors are those which are entirely self-interested, and all other
behaviors are referred to as altruistic, or as involving altruism, or as partly altruistic.
(五)
Is Utilitarianism a form of Moral Relativism? (top)
No, Utilitarianism has nothing in common with Moral Relativism. Moral Relativism states that all moral
standards are equally valid. Utilitarianism claims that all values and preferences are equally valid, but it
claims that only a single moral standard is valid (the Utilitarian standard of utility maximization). Morals and
values are different. A value is something that is considered to be a good thing. Values are preferences, desires,
goals, and so on. A moral is something that one ought to do. Utilitarianism says that the morally best thing to do
is to promote everyone's values (by maximizing welfare), with all values treated equally. Many other ethical
philosophies say that morality consists of promoting only some values, or promoting some values as more important
than other values. Moral Relativism says that there is no morally best thing to do at all. It says that all
moral standards are equally valid (or invalid), and thus that the truth of morality is entirely relative to the
perspectives of each individual. Utilitarianism is strongly opposed to Moral Relativism, because it supports a
single, straightforward and comprehensive system of morality intended to be applied universally.
(六)
What political positions do Utilitarians favor? (top)
This is a difficult question to answer, in part because there is no one answer. The nature of Utilitarianism
is that it sets out a goal (utility maximization), and says to use whatever methods will best achieve that goal.
Determining what methods best maximize utility depends on what the values and preferences of people actually are,
and what methods work best in practice. Determining these is a difficult empirical question, and in principle any
answer is possible. Utilitarians could conceivably support any political position, so long as they believed that
doing so would be the bring about the highest utility. Utilitarians do, in fact, come from a broad range in the
political spectrum. Some are fairly conservative, some are moderate, some are liberal. Some are essentially
socialist, some are libertarians, some are even social anarchists and anarcho-capitalists. Some political views are
associated mostly with particular varieties of Utilitarianism, but that is beyond the scope of this FAQ.
Utilitarians have the same problems of imperfect knowledge, limited skills, biases and prejudices that are common
to the rest of humanity. As such, it is unsurprising that they often disagree given that Utilitarianism does not
dogmatically prescribe a detailed ideology. What Utilitarians have in common is the ethical philosophy they use
to approach political issues, not the conclusions they come to on those issues.
Despite the range of Utilitarian views, the average Utilitarian does not have the same views as the average
person. The classical Utilitarians, such as Jeremy Bentham and John Stuart Mill, were radical reformers. They were
important Classical Liberals who directed harsh criticisms at old British society, which they believed was ruled by
tradition, superstition, and powerful interests in a way harmful to the general welfare. Modern Utilitarians are
less in favor of radical reform, but this is largely because of a much greater awareness that more modest but
effective changes can have better results. Utilitarianism today is also not often the explicit philosophy of
political reformers, especially in North America (where it never had as much of an impact as in Britain). Some
safe generalizations can still be made. Utilitarianism is broadly in favor of the redistribution of wealth, to at
least as much of an extent as most modern Industrial countries are (and often considerably more). Utilitarians
tend to be in favor of a substantial degree of freedom and autonomy on the part of people because that is an
effective way of promoting their welfare in practice. Democracy and the rule of law are also overwhelmingly
favored because they are effective ways of running a society composed primarily of non-Utilitarians (and even a
society of Utilitarians would have to deal with human nature). As believers in a philosophy which holds all values
to be worthy of equal consideration, Utilitarians are generally socially liberal, and very few are strong religious
conservatives.
(七)
Is Utilitarianism Atheistic? (top)
Utilitarianism is not inherently Atheistic. Utilitarian philosophy does not directly say anything about
the existence of a God or gods. Many religious believers are Utilitarians, and the preachings of many major
religious figures (such as Jesus) have many similarities to Utilitarianism. Utilitarians generally believe that
Utilitarianism would be perfectly correct in a universe with a God or gods. Of course, it must be pointed out
that Utilitarianism is not compatible with any non-Utilitarian ethical theory. If a specific religion involves an
ethical theory that is in significant disagreement with Utilitarianism, then Utilitarianism is not compatible with
that religion (or at least with fully orthodox belief in it). In practice, because there is often a great deal of
disagreement within religions and between similar religions, Utilitarianism is compatible with the main ideas of
many religions. Some religious denominations believe so strongly in ideas opposed to Utilitarianism, however, that
Utilitarianism is not compatible with them. One important factor is that Utilitarianism does not appeal to divine
authority to support itself. People have argued that God wants us to be Utilitarians, but the secular origins of
the philosophy (like those of most major ethical philosophies) are obvious. Those who claim that morality is
defined by divine authority, rather than by what is inherently right, tend to take a dim view of Utilitarianism.
It should be noted that many major religious denominations actually believe that divine authority promotes certain
morals because they are inherently right, rather than that certain morals are right merely because they are backed
by divine authority.
(八)
Does Utilitarianism favor redistribution of wealth? [LONG] (top)
The short answer to this question is "yes in theory, yes within limits in practice".
Utilitarianism has actually had a significant overlap with economics, and many people have used Utilitarian
ideas to justify the maximization of wealth, claiming that it is the same thing as maximizing welfare. A substantial
number of economists over the centuries have claimed that Utilitarianism justified wealth maximization, and thus that
the redistribution of wealth was only justified insofar as it increased the efficiency of the market. They opposed
any redistribution of wealth that would decrease the total amount of wealth in society. The Utilitarian tradition
in philosophy, and the broad trend of modern Utilitarianism, does not follow that line. Mainstream Utilitarianism
tends to be quite supportive of the redistribution of wealth.
It is fairly obvious that wealth and welfare are different things. Wealth consists of assets such as
property, goods, and money. Welfare consists of subjective things such as happiness, the satisfaction of
preferences, and the achievement of goals. It is also obvious that the presence of wealth does not always mean the
presence of an equivalent level of welfare, and that gaining more wealth does not necessarily lead to a corresponding
gain in welfare. Wealth is an important contributor to welfare, but it is not the only one. The reason that this
creates a policy dilemma is because the production and the distribution of wealth are not independent of each
other. Ideally, Utilitarianism recommends producing the maximum possible amount of wealth, and then distributing
it on the basis of need. In the real world, redistributing wealth can often diminish the incentive or the ability
of the people in the economy to produce more wealth. Not all redistribution decreases total wealth - in fact, some
forms of redistribution can increase total wealth because they serve to fix inefficiencies in a market economy.
In general, though, there are many forms of wealth redistribution which decrease total wealth, thus creating a
tradeoff between the total amount of wealth available, and the distribution of that wealth.
In principle, the Utilitarian answer to this is simple - aim for the specific tradeoff between total wealth,
and distribution of wealth, that maximizes utility. That doesn't mean that the dispute is actually simple to
resolve, because some have argued that wealth and welfare cannot practically be distinguished. There are two main
arguments for this assertion. The first is that it is effectively impossible to compare the utility between
persons, either in theory or in practice. If it is impossible in theory, then this is essentially a rejection of
Utilitarianism as it is generally understood. If it is impossible in practice, then there is no basis on which
to redistribute wealth from one person to another. It would be impossible to predict whether it would lead to
an increase or decrease in overall utility. Thus there would never be any point in sacrificing the total production
of wealth in order to redistribute it. The second form of argument involves assuming a definition of utility which
causes utility maximization to be similar or identical to wealth maximization.
The argument that utility cannot be compared between people is in reality very implausible. It is true
that comparing arbitrary sets of preferences is a theoretically complex task, and some kinds of utility are fairly
difficult to compare between people. Some, however, are fairly easy to compare. It is quite sensible, for example,
to suggest that the welfare benefits of basic food, shelter, and health are quite similar between people. We all
like to avoid hunger, to be protected from the elements, and to enjoy good health. Our likes and dislikes in such
matters are similar enough that it is quite safe to say they are approximately equal between people. Utilitarian
theory can easily cope with a situation where some kinds of utility can be compared and others cannot. One solution
would be to confine redistribution to goods of well known utility, and to use a market economy to allow people to
trade for the rest according to their preferences.
Some arguments that wealth and welfare maximization are essentially identical rely on an empirical,
psychological argument. The argument asserts that while wealth and welfare maximization are not identical, they
are associated strongly enough that wealth is at least as good a measure of welfare as anything else. We do not,
after all, have anything like a perfect way to measure welfare under any of the common views of what welfare is.
Many people believe that because wealth in a free market is heavily influenced by the choice of individuals between
available alternatives, people who choose in a rationally self-interested manner will naturally be quite effective
at maximizing their welfare. They know what they want, and they will try their best to get it. Unfortunately, this
argument actually hides some fairly broad psychological assumptions. It is well known that people are not rationally
self-interested, and that no actual market is perfect. Many markets are pretty good, and people are mostly fairly
rational, but wealth maximization will only be the best approximation of utility maximization if the failures of
markets and human reasoning are unpredictable and/or evenly distributed. If people are always mostly rational and
markets are always fairly good, then wealth maximization will be a reliable across-the-board substitute for
welfare maximization. In the real world, however, neither is the case. Market failures are minor in some
circumstances, and extreme in others. Humans can deal quite rationally with many situations, but are consistently
poor in dealing with others. Whenever we can identify the situations where the "wealth equals welfare assumptions"
fail badly, welfare maximization can differ substantially from wealth maximization and there can be a strong case
for redistribution of wealth. The empirical evidence is complicated (and a hot topic of current research), but it
is known that the "wealth equals welfare" assumptions fail under many circumstances, some of which are well known
though beyond the scope of this FAQ. The empirical assumption that wealth maximization is equivalent to welfare
maximization is simply not supportable in general, and those who argue for it tend not to test its conclusions
strongly enough to give them a good idea of when it fails.
The other argument that wealth and welfare maximization are the same is essentially an economic argument
which relies on using an economic definition of welfare/utility. The argument defines welfare in the form of
"satisfaction of expressed preferences". Economists can't actually measure preferences that people do not act on,
because that is a complex psychological issue. To make their jobs easier, they look at whatever alternative people
pick when given a choice, and say that they preferred that. This measurement of welfare becomes divorced from the
subjective mental welfare of individual by a chain of assumptions. The big problem with measuring welfare in this
manner is that what people choose in a free market is dependent upon their resources. You cannot choose what you
cannot pay for. The theoretical assumptions used by economists in these matters are actually quite complicated.
Empirical research seems to indicate that the welfare benefits of each additional bit of wealth decline as a
person becomes wealthier (this is known as declining marginal utility, of goods and of money). This provides an
argument that, in principle, highly unequal distributions of wealth are unlikely to be welfare-maximizing. The
economic definition of welfare measures preference as if dollars counted equally, not as if people counted equally.
In practice, counting dollars equally is often not the same as counting people equally. This is theoretically
complex, but can be illustrated using a fanciful but simple example.
Imagine that there is an economy consisting of two groups of people, the Greedy and the Blind. The Greedy
are very productive, generating large amounts of wealth. They are also very selfish, caring nothing about the
well-being of others. The Blind are disabled, through no real fault of their own, and thus they are considerably
less productive. They are not able to produce much that the Greedy want. The productivity level of the Blind is
barely sufficient for them to eke out a meagre existence on the brink of starvation. Their lives are difficult
and often short, and they can expect no charity from the Greedy who care nothing for them. They can also expect
little money from the Greedy through voluntary exchange, since the Greedy do not have a strong desire for the
limited goods that the Blind can produce. The Greedy, on the other hand, are quite wealthy. Their high level of
productivity provides them with lives of luxury and health. Many of them spend more money on their hobbies than
the Blind spend in their entire lives. According to wealth maximization, this situation is as it should be. The
Blind cannot produce much of what anyone else wants, and thus few of their preferences will be satisfied. According
to welfare maximization, it is not hard to see what is wrong with this situation. Redistributing a small portion
of the Greedy's wealth to the Blind would produce a very large benefit to the Blind, and only a small detriment to
the Greedy. The Greedy would live lives of slightly less luxury; the Blind would move from miserable poverty to
living comfortably. The redistributed wealth produces more welfare benefits in the hands of the Blind than the
hands of the Greedy. It is easy to see that this can remain true even if the redistribution decreases total
wealth (so that, for example, a 100 dollar decrease in Greedy wealth would result from a transfer of 50 dollars
to the Blind). Whenever someone claims that welfare maximization and wealth maximization are the same thing,
remember this example.
COMMON CRITICISMS OF UTILITARIANISM (top)
(一)
Utilitarianism is contrary to our moral intuitions, so there must be something wrong with it.
(top)
The single most common criticism of Utilitarianism, and indeed of most ethical philosophies, is that it
produces conclusions which are "contrary to our moral intuitions". What this means is deceptively simple. A
"moral intuition" is a gut feeling, intuition, or involuntary sentiment about whether something is right or wrong.
If a situation or philosophical conclusion is described, and you think that it is obviously right or wrong, without
needing to think it over or consult an ethical philosophy, that is a "moral intuition". What someone means when
they say Utilitarianism is contrary to our moral intuitions, therefore, is that there are situations where
Utilitarianism says one thing is right, but moral intuition says an entirely different thing is right.
A lot of people find arguments from moral intuition very compelling. This includes most philosophers. There
are various reasons for that, but none of them are compelling. Moral intuitions can be a sort of useful piece of
evidence in many arguments, but they prove nothing when it comes to normative ideas. Recall that a normative idea
serves as a theoretical ideal, which describes a perfect state of affairs (or a perfect strategy for action),
providing a basis against which to evaluate reality. Normative ideas not intended to be descriptive (a
descriptive idea explains how the world actually works), or prescriptive (a prescriptive idea describes an effective
and practical strategy for improvement). Utilitarianism is a normative theory. Moral intuitions certainly exist
(descriptive), and they are practical and effective ways to get people to cooperate in the real world (prescriptive),
but there is no reason to think that they have anything to do with any kind of ethical ideal (normative).
The most obvious argument against "our moral intuitions" (and that is the exact phrase used by countless
philosophers), is that they are not "ours". Popular conceptions of morality vary dramatically across societies,
across time, and between individuals. There are some underlying common features, but what is or is not morally
intuitive varies dramatically according to who you ask. When someone talks about "moral intuition", they are
probably speaking for their own moral intuition, but regardless of what they think they are probably not speaking
for the majority of humanity across the ages. One thing about a normative ideal is that it is consistent - its
nature does not depend on who you are, where you live, or what you were raised to believe. Most arguments from
moral intuition implicitly assert that the arguer's moral intuitions are either universal, or are somehow superior
to the differing intuitions of others, but they have no basis to support either of those claims. Trying to build
an objective, normative ethical philosophy on a foundation of subjective intuition is not productive.
In fact, people who call upon moral intuitions to justify their philosophies place themselves in a curious
dilemma. Philosophies are usually consistent ideas based on a manageable number of fundamental principles and
concerns. Reasoned argument is used to produce conclusions based on the principles. Moral intuitions, on the other
hand, are very case-specific, variable, sometimes contradictory, and seldom consistent with any simple set of
general principles. Intuitions are not the product of reasonable inference from a manageable set of principles,
they are the very specific feelings produced by extremely complex workings within our minds. The only philosophy
which is compatible with all intuitions is Intuitionism, which says that what is right and wrong is entirely
determined by what moral intuition says is right and wrong. Of course, since intuition varies from person to
person, Intuitionism can justify essentially anything, and fails to provide a consistent normative standard at all.
A great deal of philosophy, therefore, consists of little more than trying to produce manageable sets of principles
which, when reasoned from, will produce results as similar as possible to our intuitions. This is not an exercise
that is capable of finding out anything fundamentally new about morality. It implicitly assumes that our moral
intuitions already generally describe right and wrong, and that the role of philosophy is only to produce a
consistent and useful theory which formalizes what we already believe (for some suitable "we").
The most devastating criticism of intuition comes from science, not from philosophy. Philosophy tends to
view moral intuitions as some sort of fundamental evidence that constitutes morality, indicating what is right and
good for humans to do. In reality, however, such intuitions are the product of biological and cultural evolution.
Whenever a certain mental trait granted a survival advantage to those possessing it, that trait became more common.
Whenever a certain belief granted a competitive advantage to those believing it, that belief spread. This has
long been obvious in general, but recently the specifics are becoming equally obvious. Time and again, scientists
in fields from evolutionary biology and evolutionary psychology to psychology and economics keep discovering that
human behavioral tendencies and cultural norms correspond to the predictions of evolutionary selection. Our moral
intuitions are prescriptive - but not in any moral sense. They prescribe behaviors which promote fitness, in the
sense of "survival of the fittest". They do so precisely because they are the result of a process of evolutionary
selection (biologically, and culturally) which gave the advantage to intuitions which promoted fitness. The
unsettling truth is that the legacy of moral intuition that history has left us cannot conform to any moral ideal
which is not equivalent to that which, in practice, best promotes its own survival. Humans have the capabilities of
general purpose reasoning which enable us to break from the tyranny of our evolutionary legacy, but only if we
choose to use it effectively. In the modern world, reason has shown the power to thrive as never before, serving
to promote ideas based on their truth rather than their ability to ensure their own survival. Utilitarianism
applies this power to morality, allowing us to discover what is right, rather than what idea of right is most
selected for. To make that discovery, we must be entirely willing to reject our intuitions. Indeed, we have
good reason to - evolution selects for norms, tendencies, and other determinants of intuition so long as they work
well in most situations. Human intuitions are expected to break down in uncommon situations, and to sometimes
contradict each other, because this is part and parcel of "bounded rationality" - using the cheapest, most effective
decision strategies in the real world. Unlike a proper normative standard, low level human reasoning is not
rationally consistent because that is a waste of resources for everyday reasoning.
(二)
Utilitarianism doesn't properly account for our commitment to rights. (top)
Utilitarianism in theory certainly has no regard for "natural rights" or other such philosophical
constructs. Utilitarians reject the idea that a concept of the right to certain things is morally useful in
itself. Morality is defined by welfare, and rights are useful only insofar as they promote welfare (which, in
practice, they often do quite effectively). People often find the idea of morally absolute rights intuitively
appealing, but see the Utilitarian response to the use of such moral intuitions in this FAQ. Utilitarianism
fundamentally rejects the idea that ideas of absolute rights should place constraints on welfare. Whenever any
idea of rights conflicts with welfare, Utilitarianism must choose welfare. It sees no justification for sacrificing
the welfare of people, even to the extent of bringing about circumstances that are not preferred by anyone, because
of some idea that certain "rights violations" are inherently bad regardless of their consequences. In fact, all
proposed systems of absolute rights violate Pareto Optimality - the doctrine that, given two situations A and B,
where some people prefer A to B and nobody prefers B to A, A should be chosen.
The real reason for "our commitment to rights" (the commitment of modern Westerners at any rate - rights
were not always such a strong idea) is that they have been prescriptively useful. Legal and political rights in
the real world have had very positive results. Unfortunately, rights have often been supported on the grounds that
they are inherently right in themselves. Their success in the real world has tended to reinforce that perspective,
even though people would not have found it very appealing if the concept made everyone worse off. Humans have a
great history of taking concepts that are prescriptively useful, and coming to believe that those concepts are
inherently right (rather than useful because they promote welfare). This may be, in part, because humans tend to
believe in something more strongly if they think it is inherently right, than if they think it is merely useful in
practice. There is, in fact, a natural tendency among many people to believe that whatever conventional wisdom
holds to be good is good because of some inherent correctness, rather than because it is "merely" very useful in
promoting the welfare of people.
Utilitarians tend to be strong supporters of legal and political rights. This is because, rather than
wasting time trying to determine which rights are to be preferred based on their inherent merits, Utilitarians
recognize that many rights are very effective at promoting welfare. In the real world, things like crime, abuse of
power, and intolerance are very real problems and legally protected rights are effective and efficient safeguards
against them. It is important to recognize that those who criticize Utilitarianism for not having a sufficient
regard for rights are either doing so on entirely theoretical grounds, or are missing how useful rights are in
practice. Rights are certainly not so lacking in justification that they cannot stand on evidence, but must appeal
to being moral requirements in themselves.
(三)
Utilitarians will promote inequality as long as it maximizes utility, and that is unfair. (top)
Utilitarianism in practice has fairly significant egalitarian implications, because a very uneven
distribution of resources is unlikely to be utility-maximizing. For more information on this, see the question
"Does Utilitarianism favor the redistribution of wealth?" in this FAQ. Utilitarianism is concerned with maximizing
the overall welfare of people, and a reasonably equitable distribution of wealth appears to be a good way of doing
this in practice. It is certainly true, however, that Utilitarianism will promote inequality when doing so is
utility maximizing. To promote equality at the expense of utility is to say that equality is in itself inherently
good, and that in some circumstances it is permissible to increase equality even when that is not what the people
themselves value. The Utilitarian response to this criticism is that, while people often feel a concern for
equality in itself, this is because that has become a part of the prescriptive morality of modern cultures. Equality
is usually beneficial in practice, and so beliefs that equality is a good thing have thrived. The prevalence of
modern belief in equality should be understood not as evidence that equality is good in itself, but as evidence
that belief in equality has produced good results in practice. Utilitarianism establishes why equality is a good
thing (it often promotes welfare), and then promotes it exactly as far as its benefits justify.
It should be noted that the people who criticize Utilitarianism for not promoting equality usually place
much more importance on equality than the average person. Many of the modern Egalitarian philosophers who criticize
Utilitarianism for being insufficiently egalitarian believe that welfare should be sacrificed to equality in
fairly dramatic ways. A school of thought started by John Rawls, for example, believes that inequality is only
permissible when it increases the welfare of the least well off member of society. Such a philosophy argues that
it is better to have a society where everyone is poor, than to have a society where a few are very poor but most
are very well off. Most people do not agree with such ideas. Philosophies which would tend to produce policies
more egalitarian than Utilitarian policies tend to call for strategies that would produce very high equality at a
significant cost in wealth. One of the hallmarks of Utilitarianism is that it sanctions any effective method for
welfare maximization. This means that Utilitarianism is compatible with using a highly productive market economy
to generate wealth, and then redistributing it in an efficient and effective manner. Highly egalitarian philosophies
other than Utilitarianism often specify rather extreme methods of how equality is to be achieved, such as the
compensatory resource distribution of Rawls or the formation of cooperatives under Marxism. These are often not
very compatible with market mechanisms, and thus would have substantial problems of inefficiency.
(四)
Utilitarianism ignores justice in favor of whatever is expedient. (top)
There are two senses in which "justice" can be used. The first is that of a system which ensures results
that are morally good and "deserved" according to ethical theory. The second is that of a system which enforces
law effectively in practice. In the sense of ethical theory, Utilitarians argue that utility maximization provides
the optimal tradeoff between the values of different people. A concept of what people "deserve" which is not
derived from the values of the people requires placing an objective, inherent value in some concept of justice.
That would be fundamentally contrary to the basis of Utilitarianism, and Utilitarians argue that there is no good
reason to claim that some form of justice is inherently good independently of the welfare of people. Such a concept
of justice would require that, under some circumstances, justice should be promoted even if it was not in fact what
anyone involved wants. People do seem to feel that justice should be considered valuable in itself, but this is
because justice has tended to be practically useful. The practical usefulness of justice means that beliefs that
it is a good thing thrive, since they tend to lead to outcomes which further their spread. The prevalence of modern
belief in justice should be understood not as evidence that justice is good in itself, but as evidence that belief in
justice has produced good results in practice. Utilitarianism establishes why justice is a good thing (it often
promotes welfare), and then promotes it exactly as far as its benefits justify.
Utilitarianism also indicates that justice is useful in practice, to deter and rectify various forms of
undesirable, welfare-reducing behavior. Utilitarianism leads to a strong commitment to an effective justice
system, and argues that promoting justice in the real world is an effective way of maximizing utility. This is
especially true because it is not practically feasible to attempt to directly apply Utilitarian principles to every
decision. The social order recommended by Utilitarianism must be able to deal effectively with a non-Utilitarian
majority, and with every failure and abuse to which humanity will inevitably subject it. A consistently enforced
and fair set of laws and system of government are effective at maximizing utility under such circumstances.
Utilitarians often suggest a sort of justice system that many people find quite attractive, and which does not
differ radically from that present in modern society. Utilitarianism does not recommend sacrificing the real world
justice system to hopes that individuals will come up with more expedient behavior on their own. While perfect
Utilitarians would not need to bother with a justice system, actual people will often respond to a highly permissive
system by abusing it for personal gain.
(五)
Utilitarianism fails to recognize that we should punish people because they deserve it for what they have
done, not purely because we want to increase present and future utility. (top)
Utilitarians believe that justice is useful only insofar as it promotes
welfare. This means that a punishment is never desirable if the loss of welfare it causes to the punished exceeds
the gain in welfare resulting from a reduction in future undesirable behavior. In fact, the ideal level of
punishment minimizes the total loss of welfare, both from the punishment and from undesirable behavior, in society
as a whole. Few people would argue that punishments should be more lenient that called for by Utilitarian policy,
since this would have the effect of decreasing the welfare of society in order to preserve the welfare of those
guilty of undesirable behavior. On the other hand, many people believe that punishments should be more severe than
the Utilitarian guideline (which, for one thing, says that a criminal should ideally not be punished if doing so
will not reduce future crime by deterrence or by physical restraint of the criminal). Utilitarianism can easily
answer any practical objection to its policies, since it recommends whatever is optimal in maximizing long term
utility in practice. Utilitarianism can take into account all of the practical problems of running a justice system,
the need to reduce crime in the long term, the need to punish severely enough to create an effective deterrent
effect, and even the fact that people may value a system which imposes severe punishments. The only real difference
arises when non-Utilitarians claim, for example, that punishment should be made more severe than the Utilitarian
optimal punishment even if it won't deter or prevent significantly more future crime. Utilitarians regard imposing
additional punishment when that will not be effective in reducing crime (or creating some other benefit to welfare)
as pointless torture. It would harm someone and help nobody.
(六)
Utilitarians ignore our special responsibilities, obligations, and promises to people such as family.
(top)
One common argument which philosophers direct against Utilitarianism is that it does not place any intrinsic
moral value on things such as promises, obligations, and special responsibilities. People tend to feel that making
a promise, or having an obligation to someone, creates an inherent moral commitment to live up to it. Utilitarianism
takes a different perspective, saying that the morality of something is entirely a function of its consequences. If
you borrow money from someone, for example, Utilitarianism says that you should only pay it back if doing so will
have better consequences than not paying it back. Many people find this disagreeable, but the Utilitarian response
is that such disagreement is a product of prescriptive morality. In practice, it is usually a good idea to keep
promises and live up to obligations. Doing so promotes trust and cooperation, and often promotes not only welfare
but the personal prosperity of those honoring their obligations. It is natural that people would feel compelled to
follow such a useful strategy, but that does not mean that it is inherently right. Utilitarianism recognizes that
keeping promises and following obligations is a good thing in practice because of the beneficial consequences that
result, not because it is the right thing to do regardless of the resulting effects on peoples' welfare.
Once again, Utilitarianism disagrees with the philosophy of many people in theory, but provides a powerful
argument for respecting promises and obligations in practice. The Utilitarian argument is powerful because it does
not require believing that anything is inherently right or wrong in order to demonstrate the benefits of being
trustworthy. In order to understand the Utilitarian position, it helps to consider an example. Imagine that
someone has performed a service which you agreed to pay them for, such as painting your car. Are there consequences
which could cause you to think refusing to pay them would be morally justified? The first reaction of many people
is "no". But what if, before paying, you lost your job and money became so scarce that you were in danger of losing
your house, and feeding your family became a problem? In such a situation, it suddenly seems quite acceptable
not to pay. Refusing to pay someone for a service, knowing that this will decrease the welfare of that person and
probably decrease your trustworthiness as well, does seem to be justifiable by suitably extreme consequences. This
is the Utilitarian's point - no matter how bad or "inherently wrong" an action seems, people will accept that it
is justified if it becomes obvious that the alternative is a substantial loss of welfare.
People often seem to require more of a welfare loss that straightforward Utilitarian calculation would
indicate, but real world Utilitarian calculation need not be straightforward. Popular intuition in these matters is
likely biased to discourage casual violation of the rules, which is important because of the great human tendency to
rationalize. If a rule is very useful in most situations, then in practice it is probably not very effective if
people think that it can be broken whenever reason seems to justify it. While it may be perfectly acceptable to
break the rule when reason actually does justify it, most people would break the rule whenever they could convince
themselves that reason justified it. The two are very different things, because people often convince themselves
of something via rationalization, or self-serving thinking, or according to a biased or poorly informed perspective.
Any rule designed to curtail self-serving behavior, for example, should be strong in practice to combat
rationalization. This is a big reason why people don't like breaking "moral rules" without very good justification -
the rules had to evolve to be fairly strong, stronger than they would have to be for a society of perfect reasoners,
because otherwise they would not be strong enough to resist rationalization. Utilitarianism as a normative ideal
sets out what a perfect reasoner would do, and thus conflicts with many normal ideas of how strong moral rules
should be - until one realizes that Utilitarianism tends to support strong, prescriptive rules in practice.
(七)
Utilitarianism is cold and unemotional, its calculations failing to account for the human element.
(top)
Utilitarianism has often been called cold and unemotional, because many people believe two things. First,
that anything involving calculation must be cold and unemotional. Second, that anything which is cold and
unemotional is inherently bad, or is likely to produce poor results when dealing with people. None of these ideas
are true. In fact, Utilitarianism places more importance on human feelings than any other moral theory. It is not
possible to be more thoroughly focused on feelings, emotions, and other forms of subjective well-being than a
philosophy which focuses entirely on maximizing the subjective welfare of people. Utilitarian calculation is a
calculus of feeling, desire, preference, and sentiment. It certainly does involve an objective and unbiased
calculation, but that is the only way to simultaneously maximize welfare, and treat the welfare of different people
as being of equal worth. When the critics of Utilitarianism call it unfeeling, they are invariably referring to
the process of calculation itself, rather than the Utilitarian concept of good (welfare, which certainly
includes feelings). This is a confusion of means and ends. If we really want to give maximal and equal
consideration to the feelings of different people, a formal calculation will inevitably represent the best way to
do that. Emotional consideration of others may be vital in practice, but there is no reason for it to be
present in the theory defining the Utilitarian ideal.
Emotions are invariably subjective, and they are only really directed towards the familiar. People have
strong emotional responses to what they know, but seldom to what they can only view as an abstraction. Any moral
ideal which says that moral decisions must be influenced by things like caring and compassion implicitly says that
it is acceptable to treat people who one has less caring and compassion for as less worthy of moral consideration.
The reality of human emotion is that our emotions, positive and negative, are directed primarily toward the people
and things with the most personal relevance to us. They are not necessarily selfish, but they are inevitably
fairly self-centered simply because our experience and knowledge is self-centered. Even if someone could feel
universal caring and compassion toward all equally, this would merely cause them to arrive right back at the
Utilitarian ideal - equal consideration for all.
The "failure" of Utilitarianism to rely on subjective emotion is a great strength in theory, and also a
strength in deciding practical policies which are to apply to large groups. The position of Utilitarianism is that
when you are making a decision that has great consequences for other people, it is primarily how they feel about
the results that matter, not how you feel. There are six billion people in the world, and from an emotional
perspective most of them are "statistics", unknown faceless masses which nobody can feel much of anything for.
Yet every one of those "statistics" is a thinking, feeling human individual worth as much as any other. Human
emotions cannot cope with such a scale, but abstraction and calculation can. In order to have proper consideration
for the welfare of large numbers of people, it is necessary to discard empathy and attachment as tools which are
not up to the job of working at such a broad and abstract scale. Only an informed consideration of the preferences
of the people in the group, as unclouded by bias and self-centered sentiment as possible, can effectively promote
the welfare of them all.
(八)
Utilitarians focus totally on the consequences of actions, missing the importance of the motive behind them.
(top)
There are two senses in which the motive behind an action can be important - theoretical and practical.
Utilitarianism recognizes that motivations have great practical importance. Even if the direct effects of two
actions are the same, the motivations behind it can make a great deal of difference in how we should respond to
the action. In theory, however, absolutely all effects of an action can be considered. Two acts which have the
same consequences for welfare cannot be distinguished as better or worse than each other, because all of their
direct and indirect results taken together are equivalent. When Utilitarian theory says that a "bad" motivation
is not morally inferior to a "good" motivation, it is necessarily because the "bad" motivation does not produce
any consequences whatsoever that would make it more harmful.
Utilitarians recognize that motives are important in practice because they are important to future behavior.
Future behavior is an indirect and difficult to predict consequence of the present. This means that if a given
motivation is known to be a good predictor of future undesirable behavior, that knowledge should be taken
advantage of. When that motivation is seen in action, it provides an excellent opportunity to criticize and
discourage it. Such an opportunity may often outweigh the importance of the immediate consequences of the action,
even if they are positive. As an example, if someone publicly helps another only because they want to grab the
spotlight for political advantage, the opportunity to condemn such a negative motivation may outweigh the short
term benefits of the act. It may be beneficial to discourage using others for political advantage in general, even
if the consequences of some such actions happen to be positive. In reality we cannot always be certain about
specific consequences, but we can know that certain motivations are usually associated with negative consequences.
(九)
Utilitarians treat utility as if it were something valuable in itself, and people only vessels of utility.
(top)
Many people focus on the Utilitarian credo to "maximize utility", an overall quantity, and come to the
impression that Utilitarians think utility is a "thing" which is important independently of people. Utilitarianism
has been accused of treating people as "vessels of utility", as if they were only important because they contained
utility. A bit of reflection quickly shows the error of this criticism. "Utility", or welfare, is nothing more
than a measurement of a person's well-being. When Utilitarians talk of utility, this is a conceptual shorthand for
the well-being of people - their satisfaction of preferences, achievement of goals, and so on. Utility is the exact
opposite of a concept valuable "in itself", independent of individual people - it is a measure of what is good for
individual people. Utility is valuable precisely because it is not independent of the well-being of people, it is
that very well-being. It can sometimes be easy to forget this for people not used to using an abstract concept to
represent a complex reality. Regardless of the fact that Utilitarians talk of utility in abstract terms, as a single
thing, utility is not a thing. It is a concept referring to the well-being of all. People are not "vessels of
utility", worthwhile only because they possess utility. Utility is a measure of the good of people, who are what
Utilitarianism regards as valuable and important.
(十)
Utilitarianism doesn't have a proper regard for the uniqueness of people, because it only cares about their utility,
a number.
(top)
One of the criticisms of Utilitarianism, raised by such notables as Amartya Sen, is that Utilitarianism
rejects huge amounts of information about people to "reduce" them to a number, their utility. Utilitarianism is
criticized on the grounds that it says decisions can be made based only having only one piece of information about
people, a number. When you know the numbers representing the utilities of people under different circumstances,
that is all you need to come to a Utilitarian decision about which circumstances are better. The critics charge
that this approach fails to treat people as unique individuals, rejecting lots of important information in describing
people with a number. Many people find this criticism appealing, because it seems to them that human beings and
their interactions are very complex, and you could not possibly describe them with a single number. Any philosophy
which tried would have to be guilty of a great oversimplification.
While this argument may seem appealing, it is also one of the most fundamentally flawed criticisms of
Utilitarianism. It is helpful to look at all ethical philosophies, including Utilitarianism, as what they
ultimately are - a procedure for making a decision. You start with information, then apply an ethical philosophy,
and that allows you to come to a decision about what action you should take. The ethical philosophy is a procedure
for deciding which action you should take, given alternative actions. It tells you what the right thing to do is,
or at least what the most right thing to do is. This is important because all decision procedures are equivalent
to a decision based on numbers. They start with all of the information you have available, and manipulate it in
some way so as to give you one piece of information - which action you should take. At any stage of this procedure,
you are going to have reduced the initial information to some smaller, more manageable set of information. As you
process that information in making your decision, you reduce it further and further until you come up with the
answer. For example, before coming up with your final choice of action, you might have classified the available
choices according to how right or wrong they are. This is much less than all of the information that was initially
available, but it is enough to allow you to decide which action to choose (the most right, where that rightness
was calculated according to whatever philosophy you are using).
Utilitarianism is nothing special with regard to repeatedly narrowing down the information that it uses at
various stages of a decision making process. In fact, that is exactly what any procedure for making a decision
must do. Utilitarianism simply makes it conveniently explicit what steps it uses to come to a decision. Other
philosophies tend not to specify so rigorously how a decision is made, and so it is easy to miss the fact that any
philosophy must do the same thing, even if only implicitly. Any system for choosing one alternative from many
does something which is equivalent to ranking alternatives according to some numeric order, and picking the most
preferred alternative. Any system for evaluating how good or bad an alternative is compared to others does something
which is equivalent to taking all the information about that alternative and producing a numeric rating of it.
Given this perspective, it can be seen that the criticism that Utilitarianism rejects too much information and
"reduces" people to a number is flawed. Utilitarianism begins by saying that every single bit of information in
existence is important, because everything in the real world is relevant to the consequences of actions in it.
Every characteristic of people, every thought and desire, is ultimately relevant. Because this is too much
information to reasonably work with, a decision maker must begin by considering only what appears to be most
practically relevant to the decision. Given a reasonable amount of practical information, the Utilitarian decision
maker estimates how various choices would impact the welfare of people. If two entirely different circumstances
result in the welfare of people being the same, there is no moral basis to choose between then and so they are
regarded as having the same utility. This does not reject information about people, because no information is
rejected in calculating the utility. Utility itself does not encode all of the information about a situation,
because that would be pointless - it would mean that no progress toward a decision had been made. Utility is a
measurement of a situation, which is used to tell whether one situation is morally better than another or not.
If two situations have the same utility it does not mean they are identical, it means neither of them is morally
preferable. Given the utility information about all of the relevant people and circumstances, we can calculate
the overall utility and produce the conclusion - the single piece of information that says which decision is
preferable.
In fact, if one was to consistently argue against "rejecting information", coming to a conclusion would be
the most reprehensible thing of all. A conclusion is just one piece of information - "such an such an action is
best". Any philosophy which produces conclusions is saying that in order to make any decision, all you need is a
single piece of information - the knowledge of which action is best. If you already know that, then you don't need
to consult any other information unless you happen to want to double-check yourself. Indeed, the very exercise
of logic, one of the foundations of philosophy, would be unacceptable. Logic is a complex process for deciding
whether an argument is true or false, and it reduces the complexity of an argument down to a single piece of
information - its truth value. Given the truth value, say those who use logic, you know whether an argument is
right or wrong without having to consult any other information. Shocking!
(11)
Utilitarianism is infeasible because people can't constantly calculate the utility of their actions.
(top)
It is quite correct that people can't constantly calculate the utility of all of their actions. Even if
they could try, the lack of relevant information would often make the calculations relatively useless. Direct
Utilitarianism, the idea that utility maximization should be constrained to use the methods of explicit utility
calculation, is not a practical approach. Indirect Utilitarianism, however, is a normative theory that says what
is important is maximizing utility, regardless of what approach leads to it. Indirect Utilitarianism, as a
normative standard, cannot be attacked by this criticism. The practical question of whether calculating the
utility of every action would be possible in practice is not relevant to the theoretical issue of what defines a
perfect ethical ideal. Criticizing a normative theory because it leads to practical difficulties is like losing
your car keys in a dark room, and then looking for them in a different room because the light is better there.
Utilitarianism is seldom advocated as a way to determine one's every action, or as a system which can be
applied perfectly. It is, however, both useful and reasonably applicable as a way to evaluate social structures
and systems, and patterns of personal behavior. Fairly often, the general effects of a policy can be reliably
known even if the exact effects in any specific case cannot. Utilitarianism can produce very effective suggestions
in the evaluation of laws, forms of government, economic policies, and so on. It can also be useful in our
personal lives to remind us to behave in ways that we know will usually produce good results, such as being open
minded, paying reasonable attention to the welfare of others, and avoiding prejudice. Even under circumstances
where Utilitarianism does not lead to a single correct result because there is still disagreement over the facts
of the matter, it allows us to reject any course of action which is obviously not welfare maximizing. In practice,
rejecting bad ideas can sometimes be almost as useful as identifying the best idea. When there are many bad ideas,
getting rid of them all can cause a large improvement in the likely result, whereas getting rid of the remaining
"pretty good but not the best" ideas will lead to a smaller improvement.
(12)
Utilitarianism is unacceptable because it requires people to be saints, always ready to do whatever will
maximize utility. (top)
Utilitarianism defines morality not in terms of right and wrong, but in terms of relative levels of welfare.
A higher level of welfare is better, and maximum welfare is the best you can get. Saying that Utilitarianism
"requires" people to be perfect utility maximizers is not really meaningful. Utilitarianism says that being a
perfect utility maximizer is morally preferable to not being a perfect utility maximizer, but that is a matter of
degree rather than of absolute "moral and immoral". Increasing welfare less effectively is morally inferior, not
immoral. Utilitarianism also recognizes practical issues of utility maximizing - people have imperfect knowledge
and are not capable of arbitrarily altruistic behaviors. Practicality requires that people often follow generally
effective rules and strategies rather than trying to fine-tune every action, and that Utilitarians avoid being
exploited by others. Many people, when they say "Utilitarianism requires people to be saints", actually mean that
the Utilitarian optimum would be for them to give away most of their possessions and live a life of great hardship
in service to others. It is not at all clear that Utilitarianism would suggest this in practice.
This raises an important issue, which is the difference between evaluating the morality of an action,
and evaluating if that action should be praised or condemned. According to Utilitarianism, how effectively an
action promotes welfare does not necessarily have anything to do with whether it should be praised or condemned.
Actions should be praised or condemned only when that praise or condemnation in itself works to maximize utility.
Giving credit and laying blame are actions themselves, with important practical consequences. Take, for example,
the Utilitarian ideal - perfect welfare maximization. To fall short of being a perfect welfare maximizer is to
fall short of the Utilitarian ideal, and thus to fall short of the most morally beneficial action. Does that mean
that we should condemn those who fail to live up to the Utilitarian ideal, or even to insinuate that a person has
somehow failed if they do not maximize welfare at every opportunity? Certainly not. The Utilitarian ideal is an
impossible standard for most people to meet in practice. Criticizing people for failing to live up to such an
impossible standard would not cause them to live up to it. In fact, it would probably not even cause them to move
closer to it - such ridiculous demands would be rejected, or would lead to feelings of depression and incompetence.
Criticism should be applied when people fall short of some reasonable standard, which is chosen so that criticizing
those who fall short of it will tend to have the most positive effects.
In short, Utilitarianism does not advocate trying to convince people to be self-sacrificing saints (or even
trying to be one personally). This would not be effective. Many philosophies focus on setting forth a concept of
duty, certain requirements that people are morally obligated to fulfill. Failure to do one's duty is not only
immoral, but it should be condemned and even punished. Utilitarianism is not such a philosophy. That not being a
utility maximizer is to be less than optimal does not mean that society should demand that it is one's "duty"
to be optimal, or to spend one's every moment striving to be optimal. Not only would this not be achievable, but
the pressure that this would place on every person would worsen the quality of their lives, thus making such
demands self-defeating from the Utilitarian perspective of maximizing welfare.
(13)
Utilitarianism devalues our deepest commitments, by saying that we should value everyone else's commitments
as much as we value our own. (top)
When answering a criticism such as this, it is especially important to remember that Utilitarianism is
a normative theory, which defines an ideal. The method which is best, in practice, at nearing that ideal is not
a simplistic implementation of the theory. Utilitarianism does say that, from an ideal and objective moral
standpoint, the commitments of all people should be valued equally. This is necessary for any philosophy which
is neither biased in favor of specific people, nor supportive of self-interest over the welfare of others. The real
criticism here is practical. Many people believe that Utilitarianism requires that, in practice, people make an
effort to think of everyone else's desires and commitments as just as valuable as their own. They argue that this
devalues our commitments, because part of being deeply committed to something is treating it as more important than
the commitments of others. Certainly, the perfect Utilitarian decision maker would evaluate the utility of its
every single action, and in those calculations would treat the commitments of others as just as important as its
own. That is not relevant, though, because people are not perfect Utilitarian decision makers and are not capable
of such things as calculating the utility of their every action.
Human beings making decisions in the real world should take two approaches to their commitments. Most of
the time, they should pay the most attention on the things they care about, and work towards them. People know
their own values and situation better than those of others, and are better equipped to deal with them. The benefits
of constantly and consciously juggling one's every interest against those of others is more pressure than people can
reasonably deal with. Paying attention primarily to one's own interests, by default, is a useful and effective
strategy of maximizing welfare in the real world. A requirement to pay such constant attention to the every
interest of others that one's own welfare suffered from the effort would, in the Utilitarian view, be self-defeating.
There is, of course, another necessary approach, because sometimes our interests do come into real and obvious
conflict with those of others. In such a situation, we must give equal consideration to the interests of other
people. To follow a policy of universally considering one's own interests as more important than those of others
would be nothing but sheer selfishness. When an obvious disagreement arises with another person, their interests
are going to have to be considered one, even if only to dismiss them. There are compelling Utilitarian reasons for
paying less attention to the interests of others when conflicts are minor, trusting that each person can tend to
themselves. When a significant conflict of interests happens, however, those reasons no longer apply and the morally
superior thing to do is to consider the interests of others on an equal basis. This is no ridiculous demand of
Utilitarianism, it is in fact the common demand of empathy, fairness, and a reasonable consideration of others.
(14)
We will get the best outcome if everyone just follows egoism and acts in their own best interests.
(top)
Several philosophies have advocated a kind of egoism (pure self-interest) for practical, rather than
moral, reasons. Actual Ethical Egoists believe that the interests of others are morally irrelevant, and thus one
should only look out for number one. Many people who are not Ethical Egoists, however, believe that the interests
of all people are important, but that the best way to advance the interests of everyone is to act like an egoist.
Often, this view is refined to say that people should act in "enlightened self-interest", since it is fairly
obvious that simplistic and short-sighted selfishness can be very destructive. The idea that acting in enlightened
self interest is the best way to promote the interests of everyone is especially common among those who advocate
having a laissez faire market economy (for some reason, collective action via government is not usually considered
a suitable method of exercising enlightened self interest). The theoretical results of a "perfect free market"
in economics do support the idea that a perfect form of "enlightened self interest" maximizes welfare in such
a theoretical situation, for a definition of welfare which is not generally accepted by Utilitarians.
The Utilitarian response to this criticism is entirely practical. Utilitarianism would in fact support
a universal standard of acting in "enlightened self-interest" if that was the best way to maximize welfare. In
practice, however, it is not even close. The biggest problem is that "enlightened self-interest" is a pipe dream;
humans are not consistently "enlightened" about anything. In the real world, we mainly have to deal with plain
ordinary self-interest, which is distinctly not enlightened. In fact, the actual economic and theoretical
assumptions of enlightened self-interest, sometimes called Homo Economicus, are nearly as different from actual
people as ideal Utilitarians would be. It is instructive to consider how often the proponents of enlightened
self-interest will speak in one breath of how morality and political structures are useless because their approach
will produce the best outcome for everyone, and then use their next breath to complain about how real people do not
behave in accordance with their ideal standard of behavior.
Beyond even the most intensely empirical concerns, it is well known that Homo Economicus does not maximize
welfare even in theory. A society of perfect Utilitarians would easily be welfare-maximizing, but even a society
of perfectly, rationally self-interested individuals would not. They would suffer from problems such as an
inability to produce public goods efficiently, perverse outcomes from prisoners' dilemma type situations, and more.
The flaws of enlightened self-interest in maximizing overall welfare are well beyond the scope of this FAQ. They
are, however, very well documented in the sciences. Any good introductory Microeconomics textbook, or a book on
game theory, will describe some of the failings. The entire field of Welfare Economics contains a great many more
examples. Despite the illusions of some people on the fringes of science (or outside of them), the weight of
economic and other research is thoroughly against the proposition that enlightened self-interest is the best way
to run a society. It's not even the best way to "run" a species, as recent work in evolutionary biology and
evolutionary psychology makes clear.
(15)
The Utilitarian argument for why we should treat pleasure as utility contradicts itself. (top)
This criticism actually refers to one of the original arguments in favor of Hedonistic Utilitarianism. It
was argued that utility was equivalent to happiness, because happiness is what people desired. This led to
maximization of happiness, but it is in fact possible to come up with circumstances where maximizing the happiness
of a group of people leads to an outcome that they do not desire. This is, quite simply, because happiness is
not the only thing that people desire or prefer. The original Hedonistic Utilitarians had not really come up with
a concept of generalized values or preferences, and thus tended to refer to forms of happiness or pleasure as what
should be maximized. Their various arguments in favor of this were often somewhat psychologically naive. Another
problem is that some of them, such as John Stuart Mill, actually used "happiness" in a very broad sense whereas to
the modern observer, the term is mainly associated with Benthamite Utilitarianism and the simple emotional experience
of happiness.
One extreme but obvious example of how happiness does not necessarily correspond to general satisfaction of
preferences or values is the extreme case of drugs. With sufficiently advanced drugs, someone could be kept in a
constant state of medicated happiness or pleasure, but most people would rather continue their present lives than
live in such a state.
(16)
Having a preference doesn't make something valuable, its value is a reason to prefer it. (top)
The terms that Utilitarians use to describe utility can vary significantly, as does the concept of utility
itself. Utilitarians agree that preferences arise from values, in the sense that subjective values are what lead
to peoples' preference for one alternative over another. For Utilitarians interested in maximizing the satisfaction
of "expressed preferences", the preferences which a person demonstrates are simply the best way of determining
what that person values. If they value it, they will then prefer it. For Utilitarians interested in maximizing
the satisfaction of various kinds of "informed preferences", the talk about preferences is equivalent to talk about
the associated values. A preference for something does not cause it to be subjectively valuable, but it does imply
that it is subjectively valuable.
This same criticism, however, often comes from people who are talking about objective values. They argue
that if something is objectively valuable that is a reason to prefer it, but preferring something is not a reason
to think it is objectively valuable. Utilitarians simply reject the existence of objective values entirely. They
believe that things are never inherently valuable, they are only valuable because people value them (and the values
of different people have equivalent weight).
(17)
Utilitarianism fails to distinguish between good preferences, and bad preferences (such as sadism).
(top)
Some people - even some Utilitarians - think that Utilitarianism is flawed if it holds up "bad" preferences
as things which are just as worthy of being satisfied as other preferences. Generally, a "bad" preference is one
which people tend to find repugnant, such as taking pleasure from things which harm others. People tend to have
a great dislike of preferences which tend to harm others, and that is both understandable and sensible. Such "bad"
preferences tend to lead to behavior which harms others, sacrificing overall welfare for selfish gain. Discouraging
them is useful in practice, since a group which discourages such preferences discourages the resulting behavior,
and can thus promote its own survival and prosperity. Notice, however, that even in this sense the fundamental
reason why people have evolved a dislike of sadistic preferences is because they produce undesirable results in
practice, regardless of what one things of them morally.
Utilitarianism provides no way of excluding the pleasures of the sadist or masochist, or anything similar,
as inherently undesirable. Utilitarianism requires that when a crime is committed, the benefit to the criminal
must count (in however small a way) against the harm to the victim. Only the biases of ingrained, prescriptive
standards - which have no relevance to a normative ethical philosophy - cause people to think that some preferences
are "inherently wrong". Many people think that for one to take pleasure in a harmful act makes it worse, not better
- but this perception probably arose because someone who takes pleasure in the harm of others is more likely to
harm others, and is thus more dangerous in practice. Utilitarianism deals with this situation by addressing that
danger directly, rather than by an indirect perception that says sadistic pleasure is bad regardless of its
consequences.
The main effect of "bad" preferences is to create zero sum situations - situations where increasing the
welfare of one person must decrease the welfare of another. Sadism is not the only example of a zero sum preference.
The exact same thing holds true for any preferences which place people into conflict over finite resources, or over
choices for collective action, or any other situation where different preferences produce mutually contradictory
demands. In the real world, preferences often conflict, and whatever preferences people might label "evil" are
another case of this. What is considered inherently wrong actually varies quite a bit between different cultures,
different times, and even different people. Appealing to preferences which are "obviously" inherently bad does not
produce a standard which is universally consistent, but Utilitarianism does. Utilitarians would not support
satisfying such preferences unless they actually knew that overall welfare would be better off for it, which would
in reality be a rather rare circumstance. It is helpful to ask yourself the following two questions. First, if a
particular crime ended up producing no benefit to the criminal, would that not be in some way worse than a world
where the crime did actually produce some benefit to its perpetrator? Second, if a deluded sadist took pleasure
from the suffering of imaginary people, would it not be better to convince him they were suffering, and thus let
him live a happy illusion, than to convince him they were well off and thus leave him miserable?
(18)
Utilitarianism would sanction any horrible act if a sufficiently large number of people preferred that it
happen. (AKA "Utilitarians would support the fatal games in the Roman Coliseum") (top)
It is quite true that Utilitarianism would sanction any "horrible" act if a sufficiently large number of
people wanted it to happen. For any given act which causes some finite decrease in welfare, there exists some
number of people whose desire for that act would, all together, cause them to gain enough welfare to justify the
act. This has been used in a great many thought experiments designed to criticize Utilitarianism for supporting
some seemingly repugnant deed because enough people wanted it to happen. One common example is the Roman Coliseum
and its gory battles to the death. The Roman public quite enjoyed the spectacle, and there exists some large but
finite number of Romans whose welfare gains from watching the games would seem sufficient to justify them.
One rebuttal to this is that in practice, it may be beneficial in the long run to prevent many "horrible"
acts to work against the perception that they are necessary. Something such as the violent Roman games, for example,
would likely have significant negative psychological side effects on the viewers, plus of course the suffering of
those actually fighting in the arena. In the long term, a utility maximizing strategy could involve trying to get
rid of the institution and focus the public on less destructive forms of entertainment - which would probably require
denying people the pleasure of watching the games in the short term. Also, it is often necessary to engage in a
great deal of hand waving to make a horrible action truly utility maximizing when all alternatives are considered.
In the case of a public with a strong desire for blood sports, for example, they could be satisfied by volunteers.
Sufficient payment can induce people to take great risks very willingly. Sending slaves to die in the games may
make sense if you fundamentally don't care about the lives of slaves, but not if you regard the welfare of all
people as important enough to pay for. In the real world, things like slavery can be effective from the perspective
of a self-interested person who is not the slave, but they are virtually never the welfare maximizing alternative.
While some specific "horrible" acts might not be advocated by Utilitarians in practice, however, one can
always come up with an example sufficiently contrived that there would be no Utilitarian objections to it. The
real question in such extreme examples, apart from the obvious one of how reliable our real-world intuitions are
in such unreal situations, is exactly how much that differs from non-Utilitarian philosophies. Utilitarianism
is explicit about being willing to let some suffer in order to promote the welfare of others, but virtually every
other philosophy is willing to support the same thing. The difference is that they are less obvious about it,
being horrified at the deliberate sacrifice of another but supporting behavior which amounts to the same thing.
See the next question in this FAQ, "Utilitarians would sanction things like sacrificing a healthy man to use his
organs to save five sick men", for more details on this. In general, all ethical philosophies must trade off the
welfare of some for the welfare of others (or ignore it entirely), because it is not possible to satisfy the
welfare of everybody at once. Given that, it is virtually impossible to prevent situations where a horrible thing
ends up happening to some people because preventing it would violate some other moral rule, or would require others
to sacrifice too much of their well-being.
(19)
Utilitarians would sanction things like sacrificing a healthy man to use his organs to save five sick men.
(top)
There are two responses to this criticism. The first is that a Utilitarian system in practice would not
make it a habit to allow one person to be sacrificed for others in nightmarish "organ harvesting" scenarios or
anything like that. This is, quite simply, because the world is not full of ideal Utilitarians. Allowing such
practices in the real world would be a giant invitation for abuse. Organ harvesting, for example, would be
subject to manipulation by the wealthy, would give a very easily abused authority to kill someone for the apparent
benefit of others, would create great fear in those who might be sacrificed, and would create perverse incentives
for people to disregard their health. The actual regulations and laws a Utilitarian would recommend would be
broadly similar to those of most modern societies, subject to tweaks and reforms to reduce harmful consequences,
increase efficiency and equity, and so on.
The second is that, regardless of how reluctant Utilitarians would be to sacrifice innocent people in
practice, there will always be some sufficiently extreme situations where they would promote it. One obvious
example is in warfare, where it is often true that many innocent people will be killed by a strategy that is
intended to prevent greater suffering in the future. And then there is the justice system, where it is essentially
guaranteed that some number of innocent people will be punished by a system whose primary effect is punishing
genuine criminals and fighting crime. These examples, however, will seem to many people to be somehow more
acceptable than horrible scenarios of organ harvesting. Popular morality seems to hold that many normal rules stop
applying in an emergency such as a war. It also tends to differentiate between deliberately killing an innocent
person to benefit others, and following a beneficial strategy which will happen to kill some innocent people as an
inevitable side effect.
The prescriptive morality of everyday life makes a distinction between harms that are deliberately and
directly caused, and harms that are not. This is a sensible rule, because people who are deliberately causing
harm are usually more likely to be causing harm which could have been avoided with a better strategy, or which they
are simply trying to justify after the fact through appeal to some kind of benefits. Despite this, we must
recognize that harms not directly caused are still indirectly caused, and usually by our own actions and choices.
For example, while it is often argued that under certain conditions Utilitarianism would condone the deliberate
killing or torture of a person for the good of others, it is seldom mentioned how the same people who find this
horrible don't seem to mention any horribleness of any doctrine which will inevitably increase the probability of
people dying or being tortured, for indirect reasons, in order to influence the good of others. The Utilitarian
perspective is that for someone to die "accidentally" is no less a loss than for them to be murdered, for someone to
be tortured by direct result of one's action is no more painful than for them to be tortured as an indirect result of
one's actions. What matters are what people experience, not any difference between causes that result in no
difference in what people experience. The Utilitarian has been accused of cavalier willingness to kill a few if this
would cause sufficient benefit to the many. The Utilitarian can bring up a counteraccusation about the hypocrisy of
those who do not think it equally horrible to trade off life for wealth when the loss of life is "a statistic", a
sort of avoidable accident, rather than a death at their own hands.
How often are "thought experiments" raised in which a non-Utilitarian must evaluate the morality of allowing
pollution control standards which will inevitably lead to hundreds of deaths, because it would impoverish society to
prevent them? Or the morality of being willing to kill some inevitable number of innocent people in a war, if to do
otherwise would bring the defeat of one's nation and its dominance by a society with very different values? Or the
morality of allowing a legal system to proceed with some risk of jailing innocents (a sort of mild torture) even in
the prosecution of crimes such as fraud, which do not directly lead to injury or death? The Utilitarian in this
matter is distinguished not by horribleness or inhumanity, but by honesty, responsibility, and consistency. He does
not ignore that tradeoffs of such things as life for wealth are made in all human societies, and are in fact
essentially impossible to avoid. He is willing to impose the necessary pain and suffering as direct results of his
actions, rather than to only accept the results when they benefit him or his ideals but he does not have to
personally support any "dirty work". He does not oppose some positions on the grounds that it is horrible to inflict
pain on some for the welfare of others, and then turn around and implicitly support exactly such a trade-off when it
occurs under the position he favors.
(20)
Utilitarianism cannot account for why it would be bad to be stuck in a Matrix-like "Reality Machine".
(top)
One argument against various forms of Utilitarianism - namely, against any form which says that welfare
consists of purely subjective perceptions such as emotions and ideas about the world - is the "Reality Machine".
The argument, originally due to Robert Nozick, begins by supposing that a machine has been created which can
simulate reality so perfectly that someone inside it cannot tell an imaginary life inside the machine from real
life outside of the machine. The machine could feed them experiences of simulated friendship, simulated work,
and indeed an entire simulated world. Modern readers may wish to bring to mind the scenario of the popular movie
"The Matrix", which is essentially the same idea. The argument is basically that living inside such a machine
would be inferior to living in the real world. Since Utilitarian views based on subjective satisfactions deny
that (the simulated reality is convincing enough that it produces real emotions of satisfaction and so on),
they must be wrong.
Some Utilitarians try and get around this by saying that people can have "objective" preference satisfaction
- that if they want something to happen, it benefits them for it to happen even if they do not know about it. This
seems to depart, however, from the most sensible conception of welfare as defined by the mental state of a person.
If someone does not know about something, it cannot actually affect the quality of their life as subjectively
evaluated by them. The real issue is that there is no fundamental subjective difference between reality and a
suitable reality machine at all - for anyone. For all we know, each one of us could be in a "reality machine"
right now. We may sensibly regard the idea as unlikely, but we have absolutely no way to disprove it. The best
Utilitarian answer to the reality machine seems to be that it does not make a difference to the subjective welfare
of people, the "worth" of their experiences, but it can make a practical difference in other ways. For example,
someone in an actual reality machine would be quite helpless and vulnerable inside it, powerless in the real world.
This could be a very risky situation to get into. Also, someone's experiences in a "Reality Machine" would not be
constrained by the concerns of the real world, which means that their potential utility could change. A circumstance
in the real world which would be utility-maximizing would often not be in the Reality Machine, because the subjective
welfare of the inhabitant of the machine would not actually have to be traded off against that of others.
Many of us are driven not only by welfare but by morals - we will sacrifice our own welfare to help others if
that appears to be justified. The reality machine removes that possibility, because we are no longer interacting
with actual others. In the real world, a Utilitarian could work to promote the welfare of others, but in the reality
machine that would no longer be possible. Since the Reality Machine would only be convincing if people thought it was
real life, though, the Utilitarian in the reality machine would still think that they were interacting with real
people whose welfare mattered. This would cause the Utilitarian to sacrifice his own welfare for no gain, mistakenly
believing that it would increase the welfare of others. This sort of concern may greatly influence peoples' feelings
about the Reality Machine scenario - they may do things that would only be justified if real people benefited from
them, but the people in the Reality Machine are not real.
Imagine that you go to sleep in your bed tonight, but tomorrow you wake up sitting in a virtual reality pod.
A bored technician standing next to you says "welcome back to the real world". Would you really rather learn your
whole life had been a lie, or would you rather think that this strange incident had been a bad dream? If you did
decide to wake up, would you decide that your life up to that point had been fundamentally inferior, even if it turns
out you would have lived a much less comfortable and interesting life in the real world? To be more extreme, imagine
that you have unknowingly lived in a Reality Machine all your life, and you are on your deathbed. Would you want to
know the truth shortly before you died, or would you rather pass away in blissful ignorance?
(21)
We can't measure arbitrary preferences, so Preference Utilitarianism is useless. (top)
It is quite true that, in reality, we do not have the ability to measure the arbitrary preferences or
desires of people. We can often only make rough guesses about what the "utility function" (the relationship that
turns their circumstances into welfare values) is. This does mean that we cannot implement an ideal form of
Utilitarianism in practice. We cannot actually produce a perfect calculation of the welfare benefits of an
arbitrary event, because we don't know what its exact effects on the welfare of people will be. We cannot make our
everyday decisions using a straightforward application of Utilitarian calculation. As if such a phenomenally
complex process of calculations and comparisons could every really be straightforward anyway.
Problems in measuring preferences, or any other complex idea of welfare, are of great practical importance.
What they are not, on the other hand, are arguments against Utilitarianism. Most importantly, no practical problem
with applying Utilitarianism is an argument against its correctness as a normative ethical philosophy. If
Utilitarianism is hard to apply that means it is hard to apply, not that it is wrong. Many great discoveries,
especially in the sciences, are very hard to apply, but that does not make them wrong. The fact that we can only
approximate the solution to a complicated differential equation does not mean that there is something wrong with it.
Likewise, the problem of measuring preferences is simply a practical difficulty to be overcome. Fortunately, it is
not impossible to overcome. We can't measure any arbitrary preference, but we don't need to be able to do that in
order to make very useful decisions. Utilitarians only need to know just enough about preferences to come up with
strategies which will reliably maximize utility. Take, just as one example, the economic idea of a market. In a
market, people all make choices according to their own preferences. Each person has, in general, a better idea of
what their preferences are than someone else. Working together in a market situation, people can satisfy their
own preferences with reasonable effectiveness - and we have knowledge and theory from economics to back this up.
Markets are not necessarily utility maximizing, but economics is one way of giving us a good idea of how to
increase welfare in practice. We do not actually need detailed knowledge about the preferences of individuals to be
able to show that a well structured economic system can effectively satisfy those preferences. Disciplines such as
economics can give us a good idea of how to establish, regulate, and manage forms of social organization that are
effective at satisfying preferences even though no single person knows more than generalities about what all those
preferences are. This is not to say that economics, or psychology, or any other science of human behavior and
organization is perfect - far from it. It is merely to say that they can give us practical, useful information about
how to maximize welfare even though we do not have detailed knowledge of exactly what the individual welfare of each
person is.
(22)
There is no effective way to compare utility between people, so Utilitarians in practice cannot
effectively redistribute assets. (top)
This particular objection is often raised from the perspective of economic theory. Various theoretical
results based on certain preference structures suggest that it can be quite difficult to compare arbitrary
sorts of preferences. Theorists investigating such issues are looking for a rigorous and exact comparison between
the full preferences of different individuals. Finding the "weighting" of preferences so that one person's
preferences can be quantitatively compared to those of another is a daunting task. It's not insoluble in theory,
but it's certainly not the kind of thing that you would want to try in practice. Fortunately for Utilitarianism,
there is no need to try it in practice. Real humans do not come with arbitrary structures of preferences, we come
with goals and desires that are reliably similar in important ways. We are all part of the same species, with very
similar brains and thus similar minds. Our differences are outweighed by our similarities.
Real preferences can often be compared in a sensible, straightforward manner. The basics such as food,
shelter, and good health, for example, are of similar importance to most people. We can be confident that the effect
of factors such as these on the welfare of different people is substantial, and similar. We can even safely assume
that people benefit to a similar extent from money, at least up to a reasonable amount which allows comfortable
living. This is not to say that all people actually do benefit equally. The point is that the benefits to different
people are similar enough that we can assume they are the same, and not be too far off. Not all goods can be
compared in such a way, and that is also important. We have no reasonable basis to compare how much welfare benefit
different people gain from activities such as going to the opera (or a rock concert), walking in a pristine forest,
or living in a society which promotes their religious beliefs. Although we might be able to establish the benefits
of these to specific individuals, given extensive testing, it is not practically possible to compare them across
the population in general.
The fact that welfare benefits for different people can be compared easily for some goods, but not for
others, has important policy implications for Utilitarians. A government can reliably estimate the welfare benefits
of such basics as food, shelter, health, and a minimal income. This gives it an effective basis on which to
design policies to supply, regulate, or redistribute such goods. It cannot effectively redistribute arbitrary
goods, however, because there is too much room for people to misrepresent their interests. If the government cannot
reasonably know what the welfare benefits of a good are except by asking, and the people it asks are not reliable
because they are promoting their own interests, that will not lead to effective redistribution of the good. These
practical concerns indicate that governments should focus on redistributing basic goods and money, rather than on
trying to manage the distribution of a wide variety of goods. In fact, the government should support policies
such as free speech, and free choice in the realm of hard-to-compare goods. Free speech allows accurate information
about the welfare benefits of goods to be distributed. Free choice allows consumers to promote their own
interests when it comes to the many goods which cannot be effectively redistributed.
(23)
Utilitarianism is inherently conservative. It says our current preferences are good in themselves, so there
is no room for social reform aimed at encouraging people to have better preferences. (top)
Utilitarianism is not inherently conservative. Utilitarians do refuse to regard the current values of any
society as inherently "wrong", believing that any one value is worth as much as any other value. This does not,
however, mean that Utilitarians are against practical social reform. There is only one specific kind of reform
that Utilitarians are against. Because Utilitarianism does not support the idea that certain values are inherently
better than others, Utilitarians do not support efforts to radically restructure society simply in order to get
people to follow a new, "better" set of values. This does not, however, imply conservatism in the usual sense of
the word. Most people do not support such radical plans to restructure society, whether they are liberal or
conservative. The people who really think that their values are inherently "better", and want to impose them on
the rest of society regardless of the cost, are found at the extremes of both ends of the political spectrum.
Utilitarianism opposes the radical reform programs of Communists, reactionaries, and crusading religious
fundamentalists alike.
What Utilitarians do not oppose is any effort to change peoples' values. This is because Utilitarians
recognize that change of values is a natural and inevitable part of human life, and take a long term view of
welfare maximization. Change in some specific values, for example, can increase the satisfaction of other values.
A society of people which place an increased value on honesty will likely have decreased problems of corruption.
Utilitarian views based around "informed preferences" support efforts to change what people value so long as those
people, given a full and informed hindsight, would tend to agree with the change. The difference between Utilitarian
efforts to change values, and the efforts of many others, is that the Utilitarians wish to change values only when
they believe that it will benefit the long term welfare of the people. Utilitarians refuse to define certain
values as inherently better than others, and thus refuse to let the furthering of some values override other values
sufficiently to cause a decrease in welfare.
In practice, Utilitarians (especially the original British Utilitarians) often proposed fairly substantial
programs of social change and reform. They did this not because they believed that certain social structures and
values are inherently better, but because they believed that this would make people happier and better off. If an
increased value placed on tolerance will decrease the great misery caused by prejudice, for example, then society
may be better off in the long term if Utilitarians encourage greater tolerance. Utilitarians are not held prisoner
by every whim and preference of the present. The future generations who will inevitably inherit society must be
considered as well, and so must the fact that people often prefer a change in their values when they look back on
the change from an informed perspective. Utilitarianism only rejects changing peoples' values in ways that will
probably decrease their well-being (from their perspective), or encouraging new values which can only be sustained
by ignorance of the alternatives.
(24)
Game theory proves that Rule Utilitarianism is superior to Act Utilitarianism. (top)
Some fairly complicated arguments have attacked Act Utilitarianism using game theory. To simplify the
issue, game theory is a way of rigorously describing many situations of real-world relevance which involve
cooperation and competition. Instead of going into the theory, consider the following example. An apartment
building is on fire, and the people in it each have a choice of saving their own families and some of their
possessions, or fighting the fire. Attempting to fight the fire will only be successful if about three quarters of
the people in the building cooperate to do it. If enough people fight the fire, the building will be saved;
otherwise, it will burn down and their efforts will have gained little. Anyone who tries to save their own family
and possessions can save significantly more than they would if they joined the firefighting effort. In this example,
the best outcome overall will happen if most of the people in the building join together to fight the fire. Any
individual, however, faces a hard choice. If they simply try and save their own families, they can guarantee getting
most of them out before the fire consumes their possessions. If they fight the fire, they are taking a substantial
risk. If enough people cooperate with them, the building will be saved and they will achieve the best outcome. If
not enough people cooperate, the building will burn down and they will not even have made the effort to save their
own families. This is quite a dilemma, because which action is best depends entirely on what everyone else is
going to do.
Various arguments have been made asserting that Act Utilitarianism cannot deal effectively with this
problem. Rule Utilitarianism can certainly deal with this specific example. Rule Utilitarians believe that actions
should be chosen according to rules, and the rules should be chosen according to whether or not they maximize
utility if everyone follows them. In this example, the Rule Utilitarians would compare the two actions by asking
which action would have the best results if everyone followed it. Since cooperation has the best results if everyone
cooperates, Rule Utilitarians would cooperate with each other in this situation. Act Utilitarianism does not provide
such an obvious answer to these kinds of problems. Although its answer is not obvious, however, Act Utilitarianism
does have one. An Act Utilitarian trying to maximize expected utility would know that the best outcome happens if
everyone cooperates. If the Act Utilitarians each had good reason to expect other people to cooperate, then they
would do so. One good reason to expect another to cooperate would be knowing that they are also an Act Utilitarian
aware of the potential benefits of cooperation.
Many of the arguments from game theory result from inappropriate definitions or a lack of imagination. Since
it is more obvious that Rule Utilitarianism successfully deals with situations such as the example above, some people
see this as a sign of superiority. Act Utilitarianism can also deal with these situations but it can take a bit
more sophistication to see exactly why. Some such arguments against Act Utilitarianism also arise from a poorly
chosen definition, where the Act Utilitarian optimal action is the one which produces the best actual result,
rather than the one which produces the best expected result. Producing the best actual result depends on what
everyone else actually does, which can't really be predicted in these situations without knowing the future. If you
define the best action by actual results, then if 100 Act Utilitarians cooperate with each other, cooperation is
the best action, but if 100 Act Utilitarians all fail to cooperate, then cooperation is the worst action because it
does no good to "cooperate" alone. This definition produces situations where Act Utilitarianism cannot define a
single action as the best action. Such an approach is not suited to game theory, though, because the whole point
of the game theory approach is that the actions of others are not known beforehand. Actual decisions must be made
on the basis of expected utility, and maximizing expected utility means cooperating with others who are likely to
cooperate.
(25)
Utilitarians in the real world would simply be exploited by the less altruistic, and lose power and
influence. (top)
Avoiding exploitation is a real concern for Utilitarians, but not one that cannot be dealt with. Always
short-sightedly trying to maximize the present utility could lead to severe exploitation of Utilitarians by those
who would manipulate them into excessive self-sacrifice. Maximization of utility in the long term, however,
requires that Utilitarians prevent Utilitarianism from slowly losing power and influence. This could eventually
lead to the extinction of Utilitarianism. The ideal Utilitarian actions, therefore, often reduce self-sacrifice by
Utilitarians in order to prevent exploitation. Even in theory, when dealing with ideal Utilitarians, doing what
appears somewhat selfish in the short term can maximize utility in the long term.
In practice, avoiding exploitation is just as important. Working with imperfect knowledge and limited
capabilities, Utilitarians in the real world must often follow behavioral policies that are designed to maximize
expected utility in a wide variety of circumstances. It is important not only to avoid sacrificing oneself so
much that one's ability to maximize utility in the long term is harmed, but also to avoid creating incentives for
others to try to exploit Utilitarian behavior. Utilitarians must participate in social and political systems
with a non-Utilitarian majority, and engage in cooperative endeavours which can survive the efforts of a reasonable
proportion of exploitative insiders. Utilitarianism does not advocate fragile, self-defeating systems which
encourage others to new levels of selfishness and lead to the weakening of Utilitarianism in the long run, because
that is hardly an effective way to maximize utility. It is important to remember that there is no requirement that
Utilitarianism be applied in the most straightforward or simple manner, only that it be applied in whatever way
best achieves the goal of utility maximization.
(26)
Utilitarians are opposed to democracy because a popular vote is unlikely to maximize utility.
(top)
Actually, most Utilitarians believe that democracy is an excellent way to maximize utility. There are
enough theoretical problems with democracy that in a perfect world, filled with perfect Utilitarians, it probably
wouldn't be the best way to maximize utility. In the real world, however, democracy works very well. Real people
are not perfect Utilitarians. There are many people who will abuse power. Even well meaning people, who want to
do what is best for others, do not necessarily have a good idea of what other people want. A democratic government
is very resistant to abuses of power, because every level of authority has someone else watching over them to catch
their abuses. The various elements of government watch over each other, and the justice system watches over the
people. The people, in turn, have ultimate authority over the government. Making the government responsible to
the people is vital, because otherwise the highest level of government can become abusive without anyone having the
power to easily stop it. Democracy gives the vote to all of the people equally, but that works best in practice too.
Although some people may vote "better" than others, in terms of promoting utility, there is no reliable way to
identify these people. Trying to give power on a basis other than "one person one vote" opens the system up to
significant abuse by people who want to get more power for themselves or those that they like. It can also lead to
dangerous biases, because everyone is inevitably more familiar with their own perspective than that of very
different people. A reliable way to make sure that the interests and perspectives of all people are represented
is to give them each a vote.
Utilitarians also usually favor a form of government which has limitations placed on it that prevent it
from being equivalent to direct majority rule in all matters. There are some areas of society, such as in attempts
to enforce religious belief, where government influence is so likely to produce negative results that it is safest
to simply limit the powers of the government so that it is very hard for it to become involved. Even where the
government has power, direct democracy is often not a good idea. For sufficiently complex or long-term decisions,
most members of the public do not reasonably have the time to become usefully aware of the subject. Utilitarians
generally favor some form of representative government, where the decision makers can dedicate a lot of time and
energy to making the decisions. The public, of course, should retain oversight over the government at the ballot
box. Utilitarians wish to maximize welfare, which means that in a sense "majority rules" often applies to ideal
tradeoffs between the welfare of people. That does not, however, imply that Utilitarians think the majority should
always rule in political decisions. Nor does the Utilitarian belief that the morality of an action is determined
on a case by case basis, mean that Utilitarians believe people or government should not have restraining rules and
laws in the real world.
(27)
Utilitarians just keep adding patches to their theories to rectify specific criticisms, but the very fact
that this is necessary demonstrates the bankruptcy of the Utilitarian approach. (top)
Utilitarianism has been modified quite a bit, but this is hardly evidence against it. Why should we expect
any philosophical theory to get all the details right immediately, even if the general idea is sound? In fact,
given the number of mutually contradictory philosophies out there, philosophers are wrong most of the time. After
all, at most one of any bunch of mutually contradictory beliefs can be right. More generally, any kind of important
idea or theory has to be tested and refined, because in practice it doesn't just spring out fully formed. That
Utilitarianism changes is evidence of its strength - Utilitarians can recognize when some of their ideas have been
decisively criticized, and then abandon or change them. If a philosophy is unchanging, that is evidence that its
followers are dogmatic and incapable of recognizing their mistakes, not that it is correct. Some people view
change as an admission or indication of defeat. That view is not useful when it comes to endeavours such as
philosophy or science, though, because such complex ideas always start out at least partly wrong. Finding errors
and changing beliefs as a result is unremarkable. What is remarkable is when a position admits no errors and does
not change, because that means its followers are not finding their own mistakes. Utilitarianism remains an
important and useful philosophy because new knowledge and new techniques are constantly added to its repertoire.
Utilitarianism will continue to evolve and grow in the future.
USEFUL REFERENCES (top)
The following books are useful references about some
aspect of modern utilitarianism. There are unfortunately not many very
good modern references that provide comprehensive overviews of
Utilitarianism. If you only read one book on Utilitarianism, however,
it should definitely be William H. Shaw's﹃Contemporary Ethics: Taking
Account of Utilitarianism﹄(which is accessible, comprehensive, and up
to date).
Contemporary Ethics: Taking Account of Utilitarianism
(5/5)
(William H. Shaw, 1999) An excellent and very readable introduction to ethics in general, and Utilitarian
philosophy specifically. It covers all the major arguments, and is possibly the best book about modern
Utilitarianism yet written.
Utilitarianism
(4/5)
(Geoffrey Scarre, 1996) A concise and comprehensive historical overview of Utilitarian philosophy.
Introduces the basics of Utilitarianism and describes its similarity to pre-Utilitarian thinkers, then
covers the major variants of Utilitarianism from the early 1700s to the late 20th century. An excellent
antidote to the popular misconception that Utilitarianism began with Bentham and ended with Mill.
Utilitarianism, Institutions, and Justice
(4/5) (Technical)
(James Bailey, 1997) Explores the theory of social and political institutions, to determine what kind of
institutions Utilitarianism would recommend in the real world. Concludes that due to various constraints on
a real world system with imperfect knowledge and imperfect people, a system based on democracy and the rule
of law is preferable to one where Utilitarians try to have all important judgements made on a case by case
basis. Very rigorous and informative.
BIBLIOGRAPHY (top)
●
Bailey, James "Utilitarianism, Institutions, and Justice" (1997)
●
Baron, Jonathan "Thinking and Deciding" (1994)
●
Barrow, Robin "Utilitarianism: A Contemporary Statement" (1991)
●
Goodin, Robert E. "Utilitarianism as a Public Philosophy" (1995)
●
Kymlicka, Will "Contemporary Political Philosophy: An Introduction" (1990)
●
Mill, John Stuart "Utilitarianism" (1877)
●
Regan, Donald "Utilitarianism and Co-Operation" (1980)
●
Scarre, Geoffrey "Utilitarianism" (1996)
●
Sen, Amartya and Williams, Bernard [Editors] "Utilitarianism and Beyond" (1982)
●
Shaw, William H. "Contemporary Ethics: Taking Account of Utilitarianism" (1999)
CREDITS (top)
As of the current version, Ian Montgomerie is the sole
contributor to the Utilitarian FAQ. Hopefully, after this
version has been circulated, many other people will comment on and
contribute to the FAQ. Suggestions and constructive criticism are
always greatly appreciated, and any help of significant usefulness will
be credited.
Copyright 2000 by Ian Montgomerie (ian@ianmontgomerie.com)
This document may be freely distributed for non-commercial purposes
if it is reproduced in its textual entirety, with this notice intact.